Add transferEncoding for Streaming RequestBody with UnsignedPayload as True

[joviegas]

Motivation and Context

The authType traits will be deprecated in favor of the unsignedPayload traits. Generators implementing this SEP must ignore the old traits if the new traits are present. If the new traits are not present, generators should fall back to using the old traits. The section above describes how backwards compatibility will be maintained.

Modifications

• Thus we need to add or logic with opModel.isUnsignedPayload() while setting .transferEncoding(true) on Streaming request body.
• Note that currently all the services use unsignedPayload and AythType :"V4_UNSIGNED_BODY" so there was no impact even without fix, this fix is done for future model updates that will use unsignedPayload and not d AythType :"V4_UNSIGNED_BODY"

Testing

• Added codegen test

Screenshots (if appropriate)

License

• I confirm that this pull request can be released under the Apache 2 license

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud