public static MinimalHttpAsyncClient createMinimal(final H2Config h2Config, final Http1Config h1Config) {
        return createMinimal(HttpVersionPolicy.NEGOTIATE, h2Config, h1Config, IOReactorConfig.DEFAULT);
    }
Creates {@link MinimalHttpAsyncClient} instance optimized for
HTTP/1.1 and HTTP/2 message transport without advanced HTTP protocol
functionality.
httpclient5/src/main/java/org/apache/hc/client5/http/impl/async/HttpAsyncClients.java