class Service {
  final password = 'hunter2';
  var apiKey = 'AKIAIOSFODNN7EXAMPLE';
  String secret = 'xyz';
}

void sendCredentials() {
  connect(password: 'hunter2');
  buildClient(apiKey: 'sk-test-1234567890');
}

void connect({String? password}) {}
void buildClient({String? apiKey}) {}

import 'dart:io';

class Config {
  final String password = Platform.environment['DB_PASSWORD']!;
  final apiKey = const String.fromEnvironment('API_KEY');
  final token = readSecret();
  final secret = otherVar;
}

String readSecret() => Platform.environment['SECRET']!;

void nonCredentialNames() {
  final username = 'admin';
  final name = 'bob';
  final displayLabel = 'Sign in';
  final password = '';
  final apiKey = "";
}

void interpolated(String base) {
  final password = '$base-suffix';
  final token = "Bearer ${base}";
  connect(secret: 'prefix_$base');
}

void connect({String? secret}) {}