Description

The DataflowStartFlexTemplateOperator operator (https://github.com/apache/airflow/blob/main/airflow/providers/google/cloud/operators/dataflow.py) don't have the impersonation_chain argument even though the dataflow hook accept it in its argument (https://github.com/apache/airflow/blob/main/airflow/providers/google/cloud/operators/dataflow.py)

Use case/motivation

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Related issues

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Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

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