langchain

8e0dcb37 - Add SecretStr for Symbl.ai Nebula API (#12896)

Add SecretStr for Symbl.ai Nebula API (#12896) Description: This PR masks API key secrets for the Nebula model from Symbl.ai Issue: #12165 Maintainer: @eyurtsev --------- Co-authored-by: Praveen Venkateswaran <praveen.venkateswaran@ibm.com>