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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_more(collection_name, num_to_return, cursor_id):
 """Get an OP_GET_MORE message."""

    return b"".join([
        _ZERO_32,
        _make_c_string(collection_name),
        _pack_int(num_to_return),
        _pack_long_long(cursor_id)])