Add a doc section on enable_strict_bytes_type_checking

Author: kclowes

docs/contracts.rst

@@ -545,7 +545,7 @@ The following values will raise an error by default:
      - String is not valid hex
 
 However, you may want to be stricter with acceptable values for bytes types.
-For this you can use the ``enable_strict_bytes_type_checking`` method,
+For this you can use the :meth:`w3.enable_strict_bytes_type_checking()` method,
 which is available on the web3 instance. A web3 instance which has had this method
 invoked will enforce a stricter set of rules on which values are accepted.
 

docs/overview.rst

@@ -341,6 +341,38 @@ Cryptographic Hashing
         >>> Web3.soliditySha3(['address'], ["ethereumfoundation.eth"])
         HexBytes("0x913c99ea930c78868f1535d34cd705ab85929b2eaaf70fcd09677ecd6e5d75e9")
 
+Check Encodability
+~~~~~~~~~~~~~~~~~~~~
+
+.. py:method:: w3.is_encodable(_type, value)
+
+  Returns ``True`` if a value can be encoded as the given type. Otherwise returns ``False``.
+
+   .. code-block:: python
+
+        >>> from web3.auto.gethdev import w3
+        >>> w3.is_encodable('bytes2', b'12')
+        True
+        >>> w3.is_encodable('bytes2', b'1')
+        True
+        >>> w3.is_encodable('bytes2', '0x1234')
+        True
+        >>> w3.is_encodable('bytes2', b'123')
+        False
+
+.. py:method:: w3.enable_strict_bytes_type_checking()
+
+   Enables stricter bytes type checking. For more examples see :ref:`enable-strict-byte-check`
+
+    .. doctest::
+
+        >>> from web3.auto.gethdev import w3
+        >>> w3.enable_strict_bytes_type_checking()
+        >>> w3.is_encodable('bytes2', b'12')
+        True
+        >>> w3.is_encodable('bytes2', b'1')
+        False
+
 Modules
 -------