<s>[INST] In this problem, we want to process a list of items that has a transformation function that can throw an exception. So we'll take advantage of an async function for error handling and to ensure that identical functionality is executed for an AnyObject, Array and đình
We'll use the have Italians parameter, anyFunction for transforming an item on the list, and liftedErrorFunction with the help of another function lifting the error or not. So let's see below:

```swift
import Foundation

enum GrandpaError: Error {
    case something.getBodyWentWrong
}

extension Collection where Iterator.Element: AnyObject {
    
    /// processing items and return list value based on Success
    func processEachItemWunused(withSomeFunction someFunction: @escaping (Iterator.Element) -> Void) {
        processEachItem(withSomeFunction: someFunction)
    }
    
    /// process all item into赶Prototype and return based on success or failed
    func processEachItem(withSomeFunction someFunction: @escaping (Iterator.Element) -> () throws) -> [Iterator.Element] {
        var mappedResults: [Iterator.Element] = []
        var mappedErrors: [Iterator.Element] = []
        for value in self {
            do {
                //bad smell, this try no wraps actually
                try someFunction(value)
            } catch {
                mappedErrors.append(value)
            } else {
                mappedResults.append(value)
            }
        }
        if !mappedErrors.isEmpty { return mappedErrors }
        return mappedResults
    }
}

// we want function above the party Giles?[/INST]