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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 mixerfields(data, commdct):
 """get mixer fields to diagram it"""

    objkey = "Connector:Mixer".upper()
    fieldlists = splittermixerfieldlists(data, commdct, objkey)
    return extractfields(data, commdct, objkey, fieldlists)