Referenced in this GitHub Issue: https://github.com/RetellAI/retell-typescript-sdk/issues/377 Judging from the API docs: - https://docs.retellai.com/api-references/create-conversation-flow - https://docs.retellai.com/api-references/create-agent The

flex_mode

argument does not seem to be supported at the API level, either. Whenever I try to create a new agent, it is always created in Rigid mode.