Function set_union 

pub fn set_union<T>(
    first: &Array<T>,
    second: &Array<T>,
    is_unique: bool,
) -> Array<T>
where
    T: HasAfEnum + RealNumber,

Find union of two sets

Parameters

• first is one of the input sets
• second is the other of the input sets
• is_unique is a boolean value indicates if the input sets are unique

Return Values

An Array with union of the input sets