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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 _get_ctypes_name(self, index=None):
 """Returns a formatted name for the ctypes Fortran wrapper module. :arg index: the index of the array to return a name for. None for the new parameter, otherwise the index for the integer variable name of that dimension. """

        if index is None:
            if ("allocatable" not in self.modifiers and "pointer" not in self.modifiers
                and self.dtype != "logical"):
                #The fortan logical has type 4 by default, whereas c_bool only has 1
                return self.name
            else:
                return "{}_c".format(self.name)
        else:
            return "{0}_{1:d}_c".format(self.name, index)