Extract Text asks OpenAI to find specific features in a source string. It
creates one output for every feature, in the same order as the feature list.
Example features for an invoice:
vendor name
invoice number
total amount with currency
payment due date in ISO format
Outputs
The action creates Extracted Feature 1, Extracted Feature 2, and later
outputs that line up with the feature inputs. An output is empty when the model
cannot find that feature.
Do not repeat a feature. Duplicate feature strings cause the action to fail.
Include the desired format in the feature description. “Due date” may return
prose; “due date in YYYY-MM-DD format” is easier for later actions to use.