How to perform 'Async Fibonacci Sequence' in Dart.
// Task: Async Fibonacci Sequence
// Language: Dart
void asyncFibonacciSequence() {
// Implementation for Async Fibonacci Sequence
var result = ...; // Initialize variable
// TODO: Implement core logic here
// Step 1: Prepare data
// Step 2: Process Async Fibonacci Sequence
print("Done");
}