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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def remove_state(self, state):
 """ Remove this conversation from the given state, and potentially deactivate the state if no more conversations are in it. The relation name will be interpolated in the state name, and it is recommended that it be included to avoid conflicts with states from other relations. For example:: conversation.remove_state('{relation_name}.state') If called from a converation handling the relation "foo", this will remove the conversation from the "foo.state" state, and, if no more conversations are in this the state, will deactivate it. """

        state = state.format(relation_name=self.relation_name)
        value = _get_flag_value(state)
        if not value:
            return
        if self.key in value['conversations']:
            value['conversations'].remove(self.key)
        if value['conversations']:
            set_flag(state, value)
        else:
            clear_flag(state)