Removing duplicates in arrays with keypath

Array+Duplicates.swift

extension Array {
    func removingDuplicates<T: Equatable>(uniqueProperty: KeyPath<Element, T>) -> Self {
        var newArray = Self()
        for item in self {
            if !newArray.contains(where: { $0[keyPath: uniqueProperty] == item[keyPath: uniqueProperty] }) {
                newArray.append(item)
            }
        }
        return newArray
    }
}