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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 MyDiplomacyEnum(ctx):
 """Player's Diplomacy Enumeration."""

    return Enum(
        ctx,
        gaia=0,
        self=1,
        ally=2,
        neutral=3,
        enemy=4,
        invalid_player=-1
    )