# ModuleCallSignature Source: https://www.tensorplay.cn/docs/generated/tensorplay.export.ModuleCallSignature.html ```python class tensorplay.export.ModuleCallSignature(inputs: 'list[ArgumentSpec]', outputs: 'list[ArgumentSpec]', in_spec: 'TreeSpec | None' = None, out_spec: 'TreeSpec | None' = None, forward_arg_names: 'list[str] | None' = None) ```