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: invitation_interface.rb
    path of file: ./repos/gitlabhq/app/graphql/types
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Ty
    
      def resolve_type(object, context)
        case object
        when GroupMember
          Types::GroupInvitationType
        when ProjectMember
          Types::ProjectInvitationType
        else
          raise ::Gitlab::Graphql::Errors::BaseError, "Unknown member type #{object.class.name}"
        end