not property Null safety
Inverts the next expression.
You use this method to apply an inversion to the expression that follows. For example, the following example would only return objects where the 'id' is not equal to '5'.
final query = new Query<Employee>()
..where((e) => e.name).not.equalTo("Bob");
Implementation
QueryExpression<T, InstanceType> get not {
_invertNext = !_invertNext;
return this;
}