code: def check_value(self, value_hash, value, salt=''):
          '''Checks the specified hash value against the hash of the provided
          salt and value.
  
          An example usage of :class:`check_value` would be::
  
              val_hash = hashing.hash_value('mysecretdata', salt='abcd')
              if hashing.check_value(val_hash, 'mysecretdata', salt='abcd'):
                  # do something special
  
          :param value_hash: The hash value to check against
          :param value: The value we want hashed to compare
          :param salt: The salt to use when generating the hash of ``value``. Default is ''.
          :return: True if equal, False otherwise
          :rtype: bool
          '''
          h = self.hash_value(value, salt=salt)
          return h == value_hasf check_value(self, value_hash, value, salt=''):
          '''Checks the specified hash value against the hash of the provided
          salt and value.
  
          An example usage of :class:`check_value` would be::
  
              val_hash = hashing.hash_value('mysecretdata', salt='abcd')
              if hashing.check_value(val_hash, 'mysecretdata', salt='abcd'):
                  # do something special
  
          :param value_hash: The hash value to check against
          :param value: The value we want hashed to compare
          :param salt: The salt to use when generating the hash of ``value``. Default is ''.
          :return: True if equal, False otherwise
          :rtype: bool
          '''
          h = self.hash_value(value, salt=salt)
          return h == value_hash
docs: Checks the specified hash value against the hash of the provided
          salt and value.
  
          An example usage of :class:`check_value` would be::
  
              val_hash = hashing.hash_value('mysecretdata', salt='abcd')
              if hashing.check_value(val_hash, 'mysecretdata', salt='abcd'):
                  # do something special
  
          :param value_hash: The hash value to check against
          :param value: The value we want hashed to compare
          :param salt: The salt to use when generating the hash of ``value``. Default is ''.
          :return: True if equal, False otherwise
          :rtype: bool