(self, instrument)
Initialize an InstrumentMasker instance.

    Args:
      instrument: index of instrument to mask out (S,A,T,B == 0,1,2,3)
Initialize an InstrumentMasker instance.
Initialize an InstrumentMasker instance .
def __init__(self, instrument):
    """Initialize an InstrumentMasker instance.

    Args:
      instrument: index of instrument to mask out (S,A,T,B == 0,1,2,3)
    """
    self.instrument = instrument
def __init__ ( self , instrument ) : self . instrument = instrument