Add the bidir parameter in transmission_main_example.py
Update the program because the same Path_request class is called
that now includes this bidir field
@@ -282,6 +282,7 @@ if __name__ == '__main__':
params['trx_mode'] = ''
params['source'] = source.uid
params['destination'] = destination.uid
+ params['bidir'] = False
params['nodes_list'] = [destination.uid]
params['loose_list'] = ['strict']
params['format'] = ''
