@Override
    public Collection<ConfigCustomizer> forExtensionMethod(Class<?> extensionType, Method method) {
        final ConfigurerMethod forMethod = (configurer, config, annotation) -> configurer.configureForMethod(config, annotation, extensionType, method);
        // build a configurer that processes all annotations on the method itself.
        return buildConfigCustomizer(extensionType, method, Stream.of(method), forMethod);
    }
Applies configuration customizers according to {@link UseExtensionConfigurer} decorating annotations.
present on the method.
core/src/main/java/org/jdbi/v3/core/extension/UseAnnotationConfigCustomizerFactory.java