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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 _represent_match_traversal(match_traversal):
 """Emit MATCH query code for an entire MATCH traversal sequence."""

    output = []

    output.append(_first_step_to_match(match_traversal[0]))
    for step in match_traversal[1:]:
        output.append(_subsequent_step_to_match(step))

    return u''.join(output)