The Online Help mentions a script called CreateOp.py, which will create the boilerplate code to write custom ops, located under $KATANA_HOME/plugin_apis/. This file has been removed in Katana 2.5 versions, so the reference should be removed from the current documentation.
Customer reported version
Katana 2.5
Steps to reproduce
Go to the Katana 2.1v5 installation directory > plugin_apis. CreateOp.py appears in the folder.
In the Katana 2.5v4 installation directory, the file doesn’t appear.
Workaround
To create a custom op, please see the example ops in $KATANA_HOME/plugins/Src/Ops.
CreateOp.py from an older Katana version will generate code that also works for Katana 2.5.