Initializes the :class:`Field` members in the `Structure` with
        the *values* in the *content* dictionary.

        :param dict content: a dictionary contains the :class:`Field`
            values for each member in the `Structure`.

def initialize_fields(self, content):
        """ Initializes the :class:`Field` members in the `Structure` with
        the *values* in the *content* dictionary.

        :param dict content: a dictionary contains the :class:`Field`
            values for each member in the `Structure`.
        """
        for name, value in content.items():
            item = self[name]
            # Container or Pointer
            if is_mixin(item):
                item.initialize_fields(value)
            # Fields
            elif is_field(item):
                item.value = value
            else:
                raise MemberTypeError(self, item, name)