(self, gain=-20.0, frequency=3000, slope=0.5)
return self
highshelf takes 3 parameters: a signed number for gain or
        attenuation in dB, filter frequency in Hz and slope (default=0.5).

        Beware of clipping when using positive gain.
highshelf takes 3 parameters: a signed number for gain or
        attenuation in dB, filter frequency in Hz and slope (default=0.5).
highshelf takes 3 parameters : a signed number for gain or attenuation in dB filter frequency in Hz and slope ( default = 0 . 5 ) .
def highshelf(self, gain=-20.0, frequency=3000, slope=0.5):
        """highshelf takes 3 parameters: a signed number for gain or
        attenuation in dB, filter frequency in Hz and slope (default=0.5).

        Beware of clipping when using positive gain.
        """
        self.command.append('treble')
        self.command.append(gain)
        self.command.append(frequency)
        self.command.append(slope)
        return self
def highshelf ( self , gain = - 20.0 , frequency = 3000 , slope = 0.5 ) : self . command . append ( 'treble' ) self . command . append ( gain ) self . command . append ( frequency ) self . command . append ( slope ) return self