add support for cohere (#1849)

### What problem does this PR solve?

_Briefly describe what this PR aims to solve. Include background context
that will help reviewers understand the purpose of the PR._

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

---------

Co-authored-by: Zhedong Cen <cenzhedong2@126.com>

requirements_arm.txt

@@ -14,6 +14,7 @@ certifi==2024.7.4
 cffi==1.16.0
 charset-normalizer==3.3.2
 click==8.1.7
+cohere==5.6.2
 coloredlogs==15.0.1
 cryptography==42.0.5
 dashscope==1.14.1