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# Factorio Runtime Docs Version 2.0.7

## RailExtensionData :: table

#### Table fields

name | :: string | Name of the entity prototype to be built
Name of the entity prototype to be built
position | :: MapPosition | Position of the entity to be built
Position of the entity to be built
direction | :: defines.direction | Direction of the entity to be built
Direction of the entity to be built
goal | :: RailLocation | Goal where this rail extension will go to
Goal where this rail extension will go to