You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: service.rb
    path of file: ./repos/vets-api/lib/decision_review_v1
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require 'common/client/base'
require 'common/client/concerns/monitoring'
require 'common/client/errors'
require 'common/exceptions/forbidden'
require 'common/exceptions/schema_validation_errors'
require 'decision_review_v1/util
    
    def get_higher_level_review_contestable_issues(user:, benefit_type:)
      with_monitoring_and_error_handling do
        path = "contestable_issues/higher_level_reviews?benefit_type=#{benefit_type}"
        headers = get_contestable_issues_headers(user)
        response = perform :get, path, nil, headers
        raise_schema_error_unless_200_status response.status
        validate_against_schema(
          json: response.body,
          schema: GET_CONTESTABLE_ISSUES_RESPONSE_SCHEMA,
          append_to_error_class: ' (HLR_V1)'
        )
        response
      end
    end