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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 channel_info(self, chan):
 """get soundfont, bank, prog, preset name of channel"""

        info=fluid_synth_channel_info_t()
        fluid_synth_get_channel_info(self.synth, chan, byref(info))
        return (info.sfont_id, info.bank, info.program, info.name)