public boolean equals(Expression<?> keyExpr, Expression<?> valueExpr) {
        return getArgs().get(0).equals(keyExpr) && getArgs().get(1).equals(valueExpr);
    }
A pair of (Map) key and value

@author sasa
@param <K> Map key type
@param <V> Map value type
querydsl-core/src/main/java/com/querydsl/core/group/QPair.java