Why script parameter doesn't work as the instrument parameter?

Discussion created by alex123alex on May 17, 2017
Latest reply on May 29, 2017 by alex123alex

Hello. Tell me, please, can I solve this problem? There is instrument TopoToRaster and it has parameter "In Topo Features", so when I running it, I can choose what fields to calculate:

The same thing is in model, created in ModelBuilder.
But when I use script with that parameter, I can't choose fields:

How can I avoid manual input?