@Override
    public final int hashCode() {
        return mixin.hashCode();
    }
{@code FetchableSubQueryBase} extends {@link com.querydsl.core.support.FetchableQueryBase} to provide fluent Expression creation functionality

@param <T>
@param <Q>
querydsl-core/src/main/java/com/querydsl/core/support/FetchableSubQueryBase.java