Gets the list of parameters at the specified index in the calling argument
        list for each of the module procedures in the interface.

        :arg index: the 0-based index of the parameter in the argument list.

def get_parameter(self, index):
        """Gets the list of parameters at the specified index in the calling argument
        list for each of the module procedures in the interface.

        :arg index: the 0-based index of the parameter in the argument list.
        """
        result = []
        for target in self.targets:
            if target is not None:
                result.append(target.get_parameter(index))

        return result