def METHOD_NAME(self, requirement):
    assert isinstance(requirement, Requirement), requirement
    assert requirement.reserved_statement is not None
    assert self.context_document is not None
    statement_to_render = truncated_statement_with_no_rst(
        requirement.reserved_statement
    )
    output = self.fragment_writer.write(statement_to_render)
    self.cache[requirement] = output
    return output