post https://api.workflow.{env}.trulioo.com/interpreter-v2/file/
This endpoint uploads a file for the active step in a flow to confirm the file is correctly uploaded for the current step. Submit the file in the request body using multipart/form-data.
Path parameters in the header must include both the flowId which identifies the workflow, and the x-hf-session which is the UUID for the user state within that workflow.
Optional parameters can also include x-hf-language which is the language for execution of the workflow.