'get array sequence input to concatenate, stack etc.'

def _get_sequence_arrs(self, seq_arg):

    arr_args = []
    if (seq_arg in self.list_table):
        arr_args = self.list_table[seq_arg]
    if (seq_arg in self.tuple_table):
        arr_args = self.tuple_table[seq_arg]
    return arr_args
