nim-libp2p/bearssl-with-fixed-unittest.../libp2p/multihash.html

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<ul class="simple simple-toc" id="toc-list">
<li>
  <a class="reference reference-toplevel" href="#6" id="56">Imports</a>
  <ul class="simple simple-toc-section">
    
  </ul>
</li>
<li>
  <a class="reference reference-toplevel" href="#7" id="57">Types</a>
  <ul class="simple simple-toc-section">
      <li><a class="reference" href="#MHash"
    title="MHash = object
  mcodec*: MultiCodec
  size*: int
  coder*: MHashCoderProc">MHash</a></li>
  <li><a class="reference" href="#MHashCoderProc"
    title="MHashCoderProc = proc (data: openArray[byte]; output: var openArray[byte]) {.
    nimcall, gcsafe, noSideEffect, raises: [].}">MHashCoderProc</a></li>
  <li><a class="reference" href="#MhResult"
    title="MhResult[T] = Result[T, cstring]">MhResult</a></li>
  <li><a class="reference" href="#MultiHash"
    title="MultiHash = object
  data*: VBuffer
  mcodec*: MultiCodec
  size*: int
  dpos*: int">MultiHash</a></li>

  </ul>
</li>
<li>
  <a class="reference reference-toplevel" href="#10" id="60">Consts</a>
  <ul class="simple simple-toc-section">
      <li><a class="reference" href="#MaxHashSize"
    title="MaxHashSize = 128">MaxHashSize</a></li>

  </ul>
</li>
<li>
  <a class="reference reference-toplevel" href="#12" id="62">Procs</a>
  <ul class="simple simple-toc-section">
      <ul class="simple nested-toc-section">$
      <li><a class="reference" href="#%24%2CMultiHash"
    title="`$`(mh: MultiHash): string">`$`(mh: MultiHash): string</a></li>

  </ul>
  <ul class="simple nested-toc-section">==
      <li><a class="reference" href="#%3D%3D%2CMultiHash%2CMultiHash"
    title="`==`(a: MultiHash; b: MultiHash): bool">`==`(a: MultiHash; b: MultiHash): bool</a></li>
  <li><a class="reference" href="#%3D%3D%2CMDigest%5BT%5D%2CMultiHash"
    title="`==`[T](mdigest: MDigest[T]; mh: MultiHash): bool">`==`[T](mdigest: MDigest[T]; mh: MultiHash): bool</a></li>
  <li><a class="reference" href="#%3D%3D%2CMultiHash%2CMDigest%5BT%5D"
    title="`==`[T](mh: MultiHash; mdigest: MDigest[T]): bool">`==`[T](mh: MultiHash; mdigest: MDigest[T]): bool</a></li>

  </ul>
  <ul class="simple nested-toc-section">base58
      <li><a class="reference" href="#base58%2CMultiHash"
    title="base58(value: MultiHash): string">base58(value: MultiHash): string</a></li>

  </ul>
  <ul class="simple nested-toc-section">decode
      <li><a class="reference" href="#decode%2Ctypedesc%5BMultiHash%5D%2CopenArray%5Bbyte%5D%2CMultiHash"
    title="decode(mhtype: typedesc[MultiHash]; data: openArray[byte]; mhash: var MultiHash): MhResult[
    int]">decode(mhtype: typedesc[MultiHash]; data: openArray[byte]; mhash: var MultiHash): MhResult[
    int]</a></li>

  </ul>
  <ul class="simple nested-toc-section">digest
      <li><a class="reference" href="#digest%2Ctypedesc%5BMultiHash%5D%2Cint%2CopenArray%5Bbyte%5D"
    title="digest(mhtype: typedesc[MultiHash]; hashcode: int; data: openArray[byte]): MhResult[
    MultiHash]">digest(mhtype: typedesc[MultiHash]; hashcode: int; data: openArray[byte]): MhResult[
    MultiHash]</a></li>
  <li><a class="reference" href="#digest%2Ctypedesc%5BMultiHash%5D%2Cstring%2CopenArray%5Bbyte%5D"
    title="digest(mhtype: typedesc[MultiHash]; hashname: string; data: openArray[byte]): MhResult[
    MultiHash]">digest(mhtype: typedesc[MultiHash]; hashname: string; data: openArray[byte]): MhResult[
    MultiHash]</a></li>

  </ul>
  <ul class="simple nested-toc-section">encode
      <li><a class="reference" href="#encode%2Ctypedesc%5BMultiBase%5D%2Cstring%2CMultiHash"
    title="encode(mbtype: typedesc[MultiBase]; encoding: string; mh: MultiHash): string">encode(mbtype: typedesc[MultiBase]; encoding: string; mh: MultiHash): string</a></li>

  </ul>
  <ul class="simple nested-toc-section">hex
      <li><a class="reference" href="#hex%2CMultiHash"
    title="hex(value: MultiHash): string">hex(value: MultiHash): string</a></li>

  </ul>
  <ul class="simple nested-toc-section">init
      <li><a class="reference" href="#init%2Ctypedesc%5BMultiHash%5D%2CopenArray%5Bbyte%5D"
    title="init(mhtype: typedesc[MultiHash]; data: openArray[byte]): MhResult[MultiHash]">init(mhtype: typedesc[MultiHash]; data: openArray[byte]): MhResult[MultiHash]</a></li>
  <li><a class="reference" href="#init%2Ctypedesc%5BMultiHash%5D%2Cstring"
    title="init(mhtype: typedesc[MultiHash]; data: string): MhResult[MultiHash]">init(mhtype: typedesc[MultiHash]; data: string): MhResult[MultiHash]</a></li>
  <li><a class="reference" href="#init%2Ctypedesc%5BMultiHash%5D%2CMultiCodec%2CopenArray%5Bbyte%5D"
    title="init(mhtype: typedesc[MultiHash]; hashcode: MultiCodec; bdigest: openArray[byte]): MhResult[
    MultiHash]">init(mhtype: typedesc[MultiHash]; hashcode: MultiCodec; bdigest: openArray[byte]): MhResult[
    MultiHash]</a></li>
  <li><a class="reference" href="#init%2Ctypedesc%5BMultiHash%5D%2Cstring%2CopenArray%5Bbyte%5D"
    title="init(mhtype: typedesc[MultiHash]; hashname: string; bdigest: openArray[byte]): MhResult[
    MultiHash]">init(mhtype: typedesc[MultiHash]; hashname: string; bdigest: openArray[byte]): MhResult[
    MultiHash]</a></li>
  <li><a class="reference" href="#init%2Ctypedesc%5BMultiHash%5D%2CMultiCodec%2CMDigest%5BT%5D"
    title="init[T](mhtype: typedesc[MultiHash]; hashcode: MultiCodec; mdigest: MDigest[T]): MhResult[
    MultiHash]">init[T](mhtype: typedesc[MultiHash]; hashcode: MultiCodec; mdigest: MDigest[T]): MhResult[
    MultiHash]</a></li>
  <li><a class="reference" href="#init%2Ctypedesc%5BMultiHash%5D%2Cstring%2CMDigest%5BT%5D"
    title="init[T](mhtype: typedesc[MultiHash]; hashname: string; mdigest: MDigest[T]): MhResult[
    MultiHash]">init[T](mhtype: typedesc[MultiHash]; hashname: string; mdigest: MDigest[T]): MhResult[
    MultiHash]</a></li>

  </ul>
  <ul class="simple nested-toc-section">init58
      <li><a class="reference" href="#init58%2Ctypedesc%5BMultiHash%5D%2Cstring"
    title="init58(mhtype: typedesc[MultiHash]; data: string): MultiHash">init58(mhtype: typedesc[MultiHash]; data: string): MultiHash</a></li>

  </ul>
  <ul class="simple nested-toc-section">validate
      <li><a class="reference" href="#validate%2Ctypedesc%5BMultiHash%5D%2CopenArray%5Bbyte%5D"
    title="validate(mhtype: typedesc[MultiHash]; data: openArray[byte]): bool">validate(mhtype: typedesc[MultiHash]; data: openArray[byte]): bool</a></li>

  </ul>
  <ul class="simple nested-toc-section">write
      <li><a class="reference" href="#write%2CVBuffer%2CMultiHash"
    title="write(vb: var VBuffer; mh: MultiHash)">write(vb: var VBuffer; mh: MultiHash)</a></li>

  </ul>

  </ul>
</li>

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  </div>
  &nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L1"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L1" class="link-seesrc" target="_blank" >Edit</a>

  <div class="nine columns" id="content">
  <div id="tocRoot"></div>
  
  <p class="module-desc">This module implements MultiHash. Supported hashes are:<ol class="simple"><li>IDENTITY</li>
<li>SHA2-256/SHA2-512</li>
<li>DBL-SHA2-256</li>
<li>SHA3/KECCAK</li>
<li>SHAKE-128/SHAKE-256</li>
<li>BLAKE2s/BLAKE2s</li>
<li>SHA1</li>
</ol>
<p>Hashes which are not yet supported</p>
<ol class="simple"><li>SKEIN</li>
<li>MURMUR</li>
</ol>
</p>
  <div class="section" id="6">
<h1><a class="toc-backref" href="#6">Imports</a></h1>
<dl class="item">
<a class="reference external" href="varint.html">varint</a>, <a class="reference external" href="vbuffer.html">vbuffer</a>, <a class="reference external" href="multicodec.html">multicodec</a>, <a class="reference external" href="multibase.html">multibase</a>
</dl></div>
<div class="section" id="7">
<h1><a class="toc-backref" href="#7">Types</a></h1>
<dl class="item">
<div id="MHash" class="tohide">
<dt><pre><a href="multihash.html#MHash"><span class="Identifier">MHash</span></a> <span class="Other">=</span> <span class="Keyword">object</span>
  <span class="Identifier">mcodec</span><span class="Operator">*</span><span class="Other">:</span> <a href="multicodec.html#MultiCodec"><span class="Identifier">MultiCodec</span></a>
  <span class="Identifier">size</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
  <span class="Identifier">coder</span><span class="Operator">*</span><span class="Other">:</span> <a href="multihash.html#MHashCoderProc"><span class="Identifier">MHashCoderProc</span></a>
</pre></dt>
<dd>


&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L46"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L46" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="MHashCoderProc" class="tohide">
<dt><pre><a href="multihash.html#MHashCoderProc"><span class="Identifier">MHashCoderProc</span></a> <span class="Other">=</span> <span class="Keyword">proc</span> <span class="Other">(</span><span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">output</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span> {.
    <span class="Identifier">nimcall</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">gcsafe</span><span class="Other">,</span> </span><span class="Identifier">noSideEffect</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>


&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L44"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L44" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="MhResult" class="tohide">
<dt><pre><a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span> <span class="Other">=</span> <span class="Identifier">Result</span><span class="Other">[</span><span class="Identifier">T</span><span class="Other">,</span> <span class="Identifier">cstring</span><span class="Other">]</span></pre></dt>
<dd>


&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L57"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L57" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="MultiHash" class="tohide">
<dt><pre><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a> <span class="Other">=</span> <span class="Keyword">object</span>
  <span class="Identifier">data</span><span class="Operator">*</span><span class="Other">:</span> <a href="vbuffer.html#VBuffer"><span class="Identifier">VBuffer</span></a>
  <span class="Identifier">mcodec</span><span class="Operator">*</span><span class="Other">:</span> <a href="multicodec.html#MultiCodec"><span class="Identifier">MultiCodec</span></a>
  <span class="Identifier">size</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
  <span class="Identifier">dpos</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
</pre></dt>
<dd>


&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L51"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L51" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>

</dl></div>
<div class="section" id="10">
<h1><a class="toc-backref" href="#10">Consts</a></h1>
<dl class="item">
<div id="MaxHashSize" class="tohide">
<dt><pre><a href="multihash.html#MaxHashSize"><span class="Identifier">MaxHashSize</span></a> <span class="Other">=</span> <span class="DecNumber">128</span></pre></dt>
<dd>


&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L36"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L36" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>

</dl></div>
<div class="section" id="12">
<h1><a class="toc-backref" href="#12">Procs</a></h1>
<dl class="item">
<div id="$,MultiHash" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#%24%2CMultiHash"><span class="Identifier">`$`</span></a><span class="Other">(</span><span class="Identifier">mh</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Return string representation of MultiHash <tt class="docutils literal"><span class="pre">value</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L579"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L579" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="==,MultiHash,MultiHash" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#%3D%3D%2CMultiHash%2CMultiHash"><span class="Identifier">`==`</span></a><span class="Other">(</span><span class="Identifier">a</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">;</span> <span class="Identifier">b</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Compares MultiHashes <tt class="docutils literal"><span class="pre">a</span></tt> and <tt class="docutils literal"><span class="pre">b</span></tt>, returns <tt class="docutils literal"><span class="pre">true</span></tt> if hashes are equal, <tt class="docutils literal"><span class="pre">false</span></tt> otherwise.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L559"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L559" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="==,MDigest[T],MultiHash" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#%3D%3D%2CMDigest%5BT%5D%2CMultiHash"><span class="Identifier">`==`</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">mdigest</span><span class="Other">:</span> <span class="Identifier">MDigest</span><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">mh</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Compares MultiHash with nimcrypto's MDigest[T], returns <tt class="docutils literal"><span class="pre">true</span></tt> if hashes are equal, <tt class="docutils literal"><span class="pre">false</span></tt> otherwise.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L554"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L554" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="==,MultiHash,MDigest[T]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#%3D%3D%2CMultiHash%2CMDigest%5BT%5D"><span class="Identifier">`==`</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">mh</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">;</span> <span class="Identifier">mdigest</span><span class="Other">:</span> <span class="Identifier">MDigest</span><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Compares MultiHash with nimcrypto's MDigest[T], returns <tt class="docutils literal"><span class="pre">true</span></tt> if hashes are equal, <tt class="docutils literal"><span class="pre">false</span></tt> otherwise.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L544"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L544" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="base58,MultiHash" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#base58%2CMultiHash"><span class="Identifier">base58</span></a><span class="Other">(</span><span class="Identifier">value</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Return Base58 encoded string representation of MultiHash <tt class="docutils literal"><span class="pre">value</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L575"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L575" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="decode,typedesc[MultiHash],openArray[byte],MultiHash" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#decode%2Ctypedesc%5BMultiHash%5D%2CopenArray%5Bbyte%5D%2CMultiHash"><span class="Identifier">decode</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span>
            <span class="Identifier">mhash</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span><span class="Identifier">int</span><span class="Other">]</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

<p>Decode MultiHash value from array of bytes <tt class="docutils literal"><span class="pre">data</span></tt>.</p>
<p>On success decoded MultiHash will be stored into <tt class="docutils literal"><span class="pre">mhash</span></tt> and number of bytes consumed will be returned.</p>
<p>On error <tt class="docutils literal"><span class="pre">-1</span></tt> will be returned.</p>

&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L436"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L436" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="digest,typedesc[MultiHash],int,openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#digest%2Ctypedesc%5BMultiHash%5D%2Cint%2CopenArray%5Bbyte%5D"><span class="Identifier">digest</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">hashcode</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span>
    <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Perform digest calculation using hash algorithm with code <tt class="docutils literal"><span class="pre">hashcode</span></tt> on data array <tt class="docutils literal"><span class="pre">data</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L370"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L370" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="digest,typedesc[MultiHash],string,openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#digest%2Ctypedesc%5BMultiHash%5D%2Cstring%2CopenArray%5Bbyte%5D"><span class="Identifier">digest</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">hashname</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span>
    <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Perform digest calculation using hash algorithm with name <tt class="docutils literal"><span class="pre">hashname</span></tt> on data array <tt class="docutils literal"><span class="pre">data</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L356"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L356" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="encode,typedesc[MultiBase],string,MultiHash" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#encode%2Ctypedesc%5BMultiBase%5D%2Cstring%2CMultiHash"><span class="Identifier">encode</span></a><span class="Other">(</span><span class="Identifier">mbtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multibase.html#MultiBase"><span class="Identifier">MultiBase</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">encoding</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span> <span class="Identifier">mh</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.
    <span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Get MultiBase encoded representation of <tt class="docutils literal"><span class="pre">mh</span></tt> using encoding <tt class="docutils literal"><span class="pre">encoding</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L589"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L589" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="hex,MultiHash" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#hex%2CMultiHash"><span class="Identifier">hex</span></a><span class="Other">(</span><span class="Identifier">value</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Return hexadecimal string representation of MultiHash <tt class="docutils literal"><span class="pre">value</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L571"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L571" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="init,typedesc[MultiHash],openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BMultiHash%5D%2CopenArray%5Bbyte%5D"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span>
    <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Create MultiHash from bytes array <tt class="docutils literal"><span class="pre">data</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L511"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L511" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="init,typedesc[MultiHash],string" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BMultiHash%5D%2Cstring"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span> {.
    <span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Create MultiHash from hexadecimal string representation <tt class="docutils literal"><span class="pre">data</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L518"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L518" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="init,typedesc[MultiHash],MultiCodec,openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BMultiHash%5D%2CMultiCodec%2CopenArray%5Bbyte%5D"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">hashcode</span><span class="Other">:</span> <a href="multicodec.html#MultiCodec"><span class="Identifier">MultiCodec</span></a><span class="Other">;</span>
          <span class="Identifier">bdigest</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Create MultiHash from array of bytes <tt class="docutils literal"><span class="pre">bdigest</span></tt> and hash algorithm code <tt class="docutils literal"><span class="pre">hashcode</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L424"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L424" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="init,typedesc[MultiHash],string,openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BMultiHash%5D%2Cstring%2CopenArray%5Bbyte%5D"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">hashname</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span>
          <span class="Identifier">bdigest</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Create MultiHash from array of bytes <tt class="docutils literal"><span class="pre">bdigest</span></tt> and hash algorithm code <tt class="docutils literal"><span class="pre">hashcode</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L408"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L408" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="init58,typedesc[MultiHash],string" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init58%2Ctypedesc%5BMultiHash%5D%2Cstring"><span class="Identifier">init58</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a> {.<span class="Identifier">inline</span><span class="Other">,</span>
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Create MultiHash from BASE58 encoded string representation <tt class="docutils literal"><span class="pre">data</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L527"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L527" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="init,typedesc[MultiHash],MultiCodec,MDigest[T]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BMultiHash%5D%2CMultiCodec%2CMDigest%5BT%5D"><span class="Identifier">init</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">hashcode</span><span class="Other">:</span> <a href="multicodec.html#MultiCodec"><span class="Identifier">MultiCodec</span></a><span class="Other">;</span>
             <span class="Identifier">mdigest</span><span class="Other">:</span> <span class="Identifier">MDigest</span><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Create MultiHash from nimcrypto's <tt class="docutils literal"><span class="pre"><span class="Identifier">MDigest</span></span></tt> and hash algorithm code <tt class="docutils literal"><span class="pre">hashcode</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L396"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L396" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="init,typedesc[MultiHash],string,MDigest[T]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BMultiHash%5D%2Cstring%2CMDigest%5BT%5D"><span class="Identifier">init</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">hashname</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">;</span> <span class="Identifier">mdigest</span><span class="Other">:</span> <span class="Identifier">MDigest</span><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="multihash.html#MhResult"><span class="Identifier">MhResult</span></a><span class="Other">[</span>
    <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Create MultiHash from nimcrypto's <tt class="docutils literal"><span class="pre"><span class="Identifier">MDigest</span></span></tt> object and hash algorithm name <tt class="docutils literal"><span class="pre">hashname</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L380"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L380" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="validate,typedesc[MultiHash],openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#validate%2Ctypedesc%5BMultiHash%5D%2CopenArray%5Bbyte%5D"><span class="Identifier">validate</span></a><span class="Other">(</span><span class="Identifier">mhtype</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.
    <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Returns <tt class="docutils literal"><span class="pre">true</span></tt> if array of bytes <tt class="docutils literal"><span class="pre">data</span></tt> has correct MultiHash inside.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L481"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L481" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>
<div id="write,VBuffer,MultiHash" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#write%2CVBuffer%2CMultiHash"><span class="Identifier">write</span></a><span class="Other">(</span><span class="Identifier">vb</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="vbuffer.html#VBuffer"><span class="Identifier">VBuffer</span></a><span class="Other">;</span> <span class="Identifier">mh</span><span class="Other">:</span> <a href="multihash.html#MultiHash"><span class="Identifier">MultiHash</span></a><span class="Other">)</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>

Write MultiHash value <tt class="docutils literal"><span class="pre">mh</span></tt> to buffer <tt class="docutils literal"><span class="pre">vb</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/bearssl-with-fixed-unittest2-version/libp2p/multihash.nim#L585"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/multihash.nim#L585" class="link-seesrc" target="_blank" >Edit</a>

</dd>
</div>

</dl></div>

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