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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 _function_header(subpackage, func):
 """Generate the docstring of a function."""

    args = inspect.formatargspec(*inspect.getfullargspec(func))
    return "{name}{args}".format(name=_full_name(subpackage, func),
                                   args=args,
                                   )