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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 cmd_gopro_status(self, args):
        '''show gopro status'''
        master = self.master
        if 'GOPRO_HEARTBEAT' in master.messages:
            print(master.messages['GOPRO_HEARTBEAT'])
        else:
            print("No GOPRO_HEARTBEAT messages")