Doesn’t matter, as per
Think of it as a jumper wire from GPIO14 to GND which is cut in the middle, when the magnet is aligned with the sensor the wire is joined.
Here is a simple write up (thanks to saruter) of how you may be able to implement.
And another, How to count pulse frequency accurately with ESPHome? - #15 by stevebaxter
More reading, Pulse_counter vs pulse_meter - #2 by der-optimist
