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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 patch(callback=None, path=None, method=Method.PATCH, resource=None, tags=None, summary="Patch specified resource.", middleware=None):
 # type: (Callable, Path, Methods, Resource, Tags, str, List[Any]) -> Operation """ Decorator to configure an operation that patches a resource. """

    def inner(c):
        op = ResourceOperation(c, path or PathParam('{key_field}'), method, resource, tags, summary, middleware,
                               full_clean=False, default_to_not_supplied=True)
        op.responses.add(Response(HTTPStatus.OK, "{name} has been patched."))
        op.responses.add(Response(HTTPStatus.BAD_REQUEST, "Validation failed.", Error))
        op.responses.add(Response(HTTPStatus.NOT_FOUND, "Not found", Error))
        return op
    return inner(callback) if callback else inner