// Initializing `AutoCompleteTextField` 
let myTextField = AutoCompleteTextField(frame: CGRect(x: 20, y: 64, width: view.frame.width - 40, height: 40), dataSource: `YourDataSource`, delegate: `YourDelegate`)
// Setting `dataSource`, it can be set from the XCode IB like `TextFieldDelegate` in which will appear as `actfDataSource`
myTextField.dataSource = `YourDataSource`
// Setting delimiter (optional). If set, it will only look for suggestion after the delimiter
myTextField.setDelimiter("@")
// Show `AutoCompleteButton`
myTextField.showAutoCompleteButtonWithImage(UIImage(named: "checked"), viewMode: .whileEditing)
// Providing data source to get the suggestion from inputs
func autoCompleteTextFieldDataSource(_ autoCompleteTextField: AutoCompleteTextField) -> [ACTFWeightedDomain] {
    return weightedDomains // AutoCompleteTextField.domainNames // [ACTFDomain(text: "gmail.com", weight: 0), ACTFDomain(text: "hotmail.com", weight: 0), ACTFDomain(text: "domain.net", weight: 0)]
}
// optional delegate for checking what was suggested
func autoCompleteTextField(_ autoCompleteTextField: AutoCompleteTextField, didSuggestDomain domain: ACTFDomain) {
    print("Suggested domain: \(domain.text) - weight: \(domain.weight)")
}

// Usage
let g1 = ACTFDomain(text: "gmail.com", weight: 10)
let g2 = ACTFDomain(text: "googlemail.com", weight: 5)
let g3 = ACTFDomain(text: "google.com", weight: 4)
let g4 = ACTFDomain(text: "georgetown.edu", weight: 1)
let weightedDomains = [g1, g2, g3, g4] // [ACTFDomain]
// Storing
// store single
if g1.store() {
    print("Store success")
}
// store multiple
let errors = ACTFDomain.store(domains: weightedDomains)
if errors.count > 0 {
    print("Store domain errors: ", errors)
}
// Retrieving
// retrieved single
if let domain = ACTFDomain.domain(for: "gmail.com") {
    print("Retrieved single: ", domain.text, domain.weight)
}
// retrieved multiple
let keys = ["gmail.com", "googlemail.com", "google.com", "georgetown.edu"]
let retriedDomains = ACTFDomain.domain(for: keys)
print("Retrieved domains: ", retriedDomains.map ({ "Domain: \($0.text) - weight: \($0.weight)" }))