Smaws_Client_Lightsail.GetBucketAccessKeysReturns the existing access key IDs for the specified Amazon Lightsail bucket.
This action does not return the secret access key value of an access key. You can get a secret access key only when you create it from the response of the CreateBucketAccessKey action. If you lose the secret access key, you must create a new access key.
val error_to_string : 
  [ Smaws_Lib.Protocols.AwsJson.error
  | `AccessDeniedException of Types.access_denied_exception
  | `InvalidInputException of Types.invalid_input_exception
  | `NotFoundException of Types.not_found_exception
  | `ServiceException of Types.service_exception
  | `UnauthenticatedException of Types.unauthenticated_exception ] ->
  stringval request : 
  'http_type Smaws_Lib.Context.t ->
  Types.get_bucket_access_keys_request ->
  (Types.get_bucket_access_keys_result,
    [> Smaws_Lib.Protocols.AwsJson.error
    | `AccessDeniedException of Types.access_denied_exception
    | `InvalidInputException of Types.invalid_input_exception
    | `NotFoundException of Types.not_found_exception
    | `ServiceException of Types.service_exception
    | `UnauthenticatedException of Types.unauthenticated_exception ])
    Stdlib.result