Appends the contents of another repeated field of the same type to this
    one. We do not check the types of the individual fields.

def MergeFrom(self, other):
    """Appends the contents of another repeated field of the same type to this
    one. We do not check the types of the individual fields.
    """
    self._values.extend(other._values)
    self._message_listener.Modified()