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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 send_wp_requests(self, wps=None):
        '''send some more WP requests'''
        if wps is None:
            wps = self.missing_wps_to_request()
        tnow = time.time()
        for seq in wps:
            #print("REQUESTING %u/%u (%u)" % (seq, self.wploader.expected_count, i))
            self.wp_requested[seq] = tnow
            self.master.waypoint_request_send(seq)