How to properly drop user_id from Anthropic requests?

[Manouchehri]

Should I be doing this:

model_list:
  - model_name: claude-3-5-sonnet-20241022
    litellm_params:
      model: anthropic/claude-3-5-sonnet-20241022
      max_tokens: 8192
      additional_drop_params: ["user"]

or this?

model_list:
  - model_name: claude-3-5-sonnet-20241022
    litellm_params:
      model: anthropic/claude-3-5-sonnet-20241022
      max_tokens: 8192
      additional_drop_params: ["metadata"]

or this?

model_list:
  - model_name: claude-3-5-sonnet-20241022
    litellm_params:
      model: anthropic/claude-3-5-sonnet-20241022
      max_tokens: 8192
      additional_drop_params: ["user_id"]

Thanks!

For reference, this is the request payload that gets sent upstream.

{
  "model": "claude-3-5-sonnet-20241022",
  "messages": [
    {
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": "Hello."
        }
      ]
    }
  ],
  "temperature": 0,
  "max_tokens": 8192,
  "metadata": {
    "user_id": "dfccbd12e753d4e91a66b3a2"
  },
  "stream": true
}