private MethodSpec construct1_UpdateWhere() {
        return MethodSpec.constructorBuilder()
            .addModifiers(Modifier.PUBLIC)
            .addParameter(fluent.updater(), "updater")
            .addStatement("super(updater)")
            .build();
    }
public UpdateWhere(AddressUpdate update)

@return MethodSpec
fluent-mybatis-processor/src/main/java/cn/org/atool/fluent/processor/mybatis/filer/segment/SegmentFiler.java