updateResponseHeadersPolicy   
  abstract suspend fun updateResponseHeadersPolicy(input: UpdateResponseHeadersPolicyRequest): UpdateResponseHeadersPolicyResponse
Updates a response headers policy.
When you update a response headers policy, the entire policy is replaced. You cannot update some policy fields independent of others. To update a response headers policy configuration:
- Use - GetResponseHeadersPolicyConfigto get the current policy's configuration.
- Modify the fields in the response headers policy configuration that you want to update. 
- Call - UpdateResponseHeadersPolicy, providing the entire response headers policy configuration, including the fields that you modified and those that you didn't.