bigqueryoperator not working with udf

[rich...@rezco.co.za]

Hi there 

I'm trying to run a basic bigquery operator task which uses a user defined function (UDF).

The example comes from https://cloud.google.com/bigquery/docs/reference/standard-sql/user-defined-functions and runs perfectly in BigQuery. 

However when I upload to composer I get "Function not found: multiplyInputs (see full log and python script attached) 

The udf_config field of BigQueryOperator requires a list, so I defined my UDF as a list containing one string - not sure if this is correct?

Any help would be highly appreciated.