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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 _operations_from_methods(handler_class):
 """Generator of operations described in handler's http methods :param handler_class: :type handler_class: RequestHandler descendant """

        for httpmethod in yaml_utils.PATH_KEYS:
            method = getattr(handler_class, httpmethod)
            operation_data = yaml_utils.load_yaml_from_docstring(method.__doc__)
            if operation_data:
                operation = {httpmethod: operation_data}
                yield operation