Modify @State value from a function in another file

Hi guys!
Sincerely I don't know what title should I put to this post. Anyway, hope you can help me :)
I have a function that request some data to my webserver. Everything works fine when the function is in the same structure as the body, but when I write this function in a different file, and then call it to my Struct (body file), the @State that should return is not returning it anymore ( it is empty).
Here is my code:

Function file

Code Block swift
import SwiftUI
struct DescriptionFunction {
    
    // Result variable
    @State var companyDescriptionResult = [CompanyDescriptionResult]()
    
    // Define function API Request
    func descriptionRequest(url: String) {
        
        
        // First replace spaces for & in the parameter (searchText)
        let urlEncode = url.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) ?? url
        
        guard let url = URL(string: urlEncode) else {
            print("Invalid URL")
            return
        }
        let request = URLRequest(url: url)
        
        URLSession.shared.dataTask(with: request) { data, reponse, error in
            if let data = data {
                if let decodedResponse = try? JSONDecoder().decode(CompanyDescriptionResponse.self, from: data) {
                    DispatchQueue.main.async {
                        
                        self.companyDescriptionResult = decodedResponse.results
                        
                    }
                    
                    return
                }
            }
            print("Fetch failed: \(error?.localizedDescription ?? "Unknown error")")
            
        }.resume()
        
    }
}

View

Code Block swift
struct CompanyDescriptionScreen: View {
    
    var descriptionFunction = DescriptionFunction()
    
    var body: some View {
        VStack {
            Text("1")
                .onAppear {
                    descriptionFunction.descriptionRequest(url: "myURL")
                    
                }
            
            Button(action: {print(descriptionFunction.companyDescriptionResult)}) {
                Text("print")
            }
        }
        
    }
}

When I click this button, it prints an empty array, when it shouldn't. If I write the function directly in the same view file and structure, it returns the actual value.

Thank you.
Dennis

Code Block 
class DescriptionFunction: ObservableObject { //<-
    
    // Result variable
    @Published var companyDescriptionResult = [CompanyDescriptionResult]() //<-
    //...
}

Code Block 
struct CompanyDescriptionScreen: View {
    
    @ObservedObject var descriptionFunction = DescriptionFunction() //<-
    
    //...
}