example_fetch_query_no_sync.swift

let query: [String:Any] = [
  kSecClass as String: kSecClassGenericPassword,
  kSecAttrSynchronizable as String: kCFBooleanFalse,
  kSecAttrAccount as String: "accountName".data(using: .utf8)!,
  kSecReturnData as String: kCFBooleanTrue
]

var result: AnyObject?
let status: OSStatus = withUnsafeMutablePointer(to: &result) {
  SecItemCopyMatching(query as CFDictionary, UnsafeMutablePointer($0))
}