@Override
    public String toString() {
        return MoreObjects.toStringHelper(this).omitNullValues()
                          .add("hostnamePattern", hostnamePattern)
                          .add("pathMapping", pathMapping)
                          .add("regexPathPrefix", regexPathPrefix)
                          .add("fragment", fragment)
                          .add("defaultMimeType", defaultMimeType)
                          .add("availableMimeTypes", availableMimeTypes)
                          .toString();
    }
Returns a newly-created {@link EndpointInfo} based on the properties of this builder.
core/src/main/java/com/linecorp/armeria/server/docs/EndpointInfoBuilder.java