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# Factorio Runtime Docs Version 2.0.7

## PipeConnectionDefinition :: table

#### Table fields

positions | :: array[MapPosition] | The 4 cardinal direction connection points for this pipe.
The 4 cardinal direction connection points for this pipe.
max_underground_distance | :: uint? | The maximum tile distance this underground connection can connect.
The maximum tile distance this underground connection can connect.
flow_direction | :: `"input-output"` or `"input"` or `"output"` |
direction | :: defines.direction |