public static <D> Predicate eq(Expression<D> left, Expression<? extends D> right) {
        return predicate(Ops.EQ, left, right);
    }
Create a {@code left == right} expression

@param <D> type of expressions
@param left lhs of expression
@param right rhs of expression
@return left == right
querydsl-core/src/main/java/com/querydsl/core/types/ExpressionUtils.java