Snowflake cross-language wrapper fails for Dataflow

[damccorm]

Error is : KeyError: 'beam:transform:write_files:v1'

See following thread for details.

https://lists.apache.org/thread.html/r0602f6533895485797c463b04cad9709661dd92fd38d4e8a9acc4fe2%40%3Cuser.beam.apache.org%3E

 

Probably moving Dataflow to directly consume Beam protos will resolve this.

Imported from Jira BEAM-11332. Original Jira may contain additional context.
Reported by: chamikara.