diff --git a/lib/solidity/address.js b/lib/solidity/address.js
index fbcd8b6..6fa8372 100644
--- a/lib/solidity/address.js
+++ b/lib/solidity/address.js
@@ -1,6 +1,16 @@
 var f = require('./formatters');
 var SolidityType = require('./type');
 
+/**
+ * SolidityTypeAddress is a prootype that represents address type
+ * It matches:
+ * address
+ * address[]
+ * address[4]
+ * address[][]
+ * address[3][]
+ * address[][6][], ...
+ */
 var SolidityTypeAddress = function () {
     this._inputFormatter = f.formatInputInt;
     this._outputFormatter = f.formatOutputAddress;
@@ -38,26 +48,5 @@ SolidityTypeAddress.prototype.nestedName = function (name) {
     return name.replace(/\[([0-9])*\]/, '');
 };
 
-SolidityTypeAddress.prototype.formatOutput = function (param, unused, name) {
-    if (this.isStaticArray(name)) {
-        var staticPart = param.staticPart();
-        var result = [];
-        for (var i = 0; i < staticPart.length; i += 64) {
-            result.push(this._outputFormatter(new SolidityParam(staticPart.substr(0, i + 64))));
-        } 
-        return result;
-    } else if (this.isDynamicArray(name)) {
-        var dynamicPart = param.dynamicPart();
-        var result = [];
-        // first position of dynamic part is the length of the array
-        var length = new BigNumber(param.dynamicPart().slice(0, 64), 16);
-        for (var i = 0; i < length * 64; i += 64) {
-            result.push(this._outputFormatter(new SolidityParam(dynamicPart.substr(i + 64, 64))));
-        }
-        return result;
-    }
-    
-    return this._outputFormatter(param);
-};
-
 module.exports = SolidityTypeAddress;
+
diff --git a/lib/solidity/type.js b/lib/solidity/type.js
index 901b1dd..db725e7 100644
--- a/lib/solidity/type.js
+++ b/lib/solidity/type.js
@@ -1,5 +1,3 @@
-
-
 var f = require('./formatters');
 var SolidityParam = require('./param');
 
@@ -12,7 +10,7 @@ var SolidityType = function (config) {
 };
 
 /**
- * Should be used to determine if this SolidityType do match given type
+ * Should be used to determine if this SolidityType do match given name
  *
  * @method isType
  * @param {String} name
@@ -22,6 +20,53 @@ SolidityType.prototype.isType = function (name) {
     throw "this method should be overrwritten!";
 };
 
+/**
+ * Should be used to determine what is the length of static part in given type
+ *
+ * @method staticPartLength
+ * @param {String} name
+ * @return {Number} length of static part in bytes
+ */
+SolidityType.prototype.staticPartLength = function (name) {
+    throw "this method should be overrwritten!";
+};
+
+/**
+ * Should be used to determine if type is dynamic array
+ * eg: 
+ * "type[]" => true
+ * "type[4]" => false
+ *
+ * @method isDynamicArray
+ * @param {String} name
+ * @return {Bool} true if the type is dynamic array 
+ */
+SolidityType.prototype.isDynamicArray = function (name) {
+    throw "this method should be overrwritten!";
+};
+
+/**
+ * Should be used to determine if type is static array
+ * eg: 
+ * "type[]" => false
+ * "type[4]" => true
+ *
+ * @method isStaticArray
+ * @param {String} name
+ * @return {Bool} true if the type is static array 
+ */
+SolidityType.prototype.isStaticArray = function (name) {
+    throw "this method should be overrwritten!";
+};
+
+/**
+ * Should be used to encode the value
+ *
+ * @method encode
+ * @param {Object} value 
+ * @param {String} name
+ * @return {String} encoded value
+ */
 SolidityType.prototype.encode = function (value, name) {
     if (this.isDynamicArray(name)) {
         var length = value.length;                          // in int
@@ -52,13 +97,13 @@ SolidityType.prototype.encode = function (value, name) {
 };
 
 /**
- * Should be used to decode params from bytes
+ * Should be used to decode value from bytes
  *
  * @method decode
  * @param {String} bytes
  * @param {Number} offset in bytes
  * @param {String} name type name
- * @returns {SolidityParam} param
+ * @returns {Object} decoded value
  */
 SolidityType.prototype.decode = function (bytes, offset, name) {
     if (this.isDynamicArray(name)) {
@@ -95,4 +140,3 @@ SolidityType.prototype.decode = function (bytes, offset, name) {
 };
 
 module.exports = SolidityType;
-