contentHandlingStrategy
Specifies how to handle response payload content type conversions. Supported values are CONVERT_TO_BINARY and CONVERT_TO_TEXT, with the following behaviors:
CONVERT_TO_BINARY: Converts a response payload from a Base64-encoded string to the corresponding binary blob.
CONVERT_TO_TEXT: Converts a response payload from a binary blob to a Base64-encoded string.
If this property is not defined, the response payload will be passed through from the integration response to the route response or method response without modification.