How to reset all send return for all tracks with 1 buttons ?

Hello everyone

How to reset all send return for all tracks with 1 buttons ?

i created a reaction to reset value send to 0

self.song().tracks[0].mixer_device.sends[0].value = 0
self.song().tracks[1].mixer_device.sends[0].value = 0
self.song().tracks[2].mixer_device.sends[0].value = 0
self.song().tracks[3].mixer_device.sends[0].value = 0
self.song().tracks[4].mixer_device.sends[0].value = 0
self.song().tracks[5].mixer_device.sends[0].value = 0

self.song().tracks[0] => is number of tracks

mixer_device.sends[0] => is number of sends

Is there a command to select all  tracks and all sends ?

Thank you in advance for your answer

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