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: endpoints.rb
    path of file: ./repos/aws-sdk-ruby/gems/aws-sdk-core/lib/aws-sdk-sso/plugins
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# WARNING ABOUT GENERATED CODE
#
# This file is gener
    
        def parameters_for_operation(context)
          case context.operation_name
          when :get_role_credentials
            Aws::SSO::Endpoints::GetRoleCredentials.build(context)
          when :list_account_roles
            Aws::SSO::Endpoints::ListAccountRoles.build(context)
          when :list_accounts
            Aws::SSO::Endpoints::ListAccounts.build(context)
          when :logout
            Aws::SSO::Endpoints::Logout.build(context)
          end