this.installationToolchainsSource = installationToolchainsSource;
            return this;
        }

        public ToolchainsBuilderRequestBuilder userToolchainsSource(Source userToolchainsSource) {
            this.userToolchainsSource = userToolchainsSource;
            return this;
        }

        public ToolchainsBuilderRequest build() {

    default ToolchainsBuilderResult build(
            @Nonnull Session session,
            @Nonnull Source installationToolchainsFile,
            @Nonnull Source userToolchainsSource) {
        return build(ToolchainsBuilderRequest.build(session, installationToolchainsFile, userToolchainsSource));
    }