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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 _delete(collection_name, spec, opts, flags):
 """Get an OP_DELETE message."""

    encoded = _dict_to_bson(spec, False, opts)  # Uses extensions.
    return b"".join([
        _ZERO_32,
        _make_c_string(collection_name),
        _pack_int(flags),
        encoded]), len(encoded)