initializeHeaders function

Implementation

Map<String, String> initializeHeaders() {
  return {
    'user-agent': USER_AGENT,
    'accept': '*/*',
    'accept-encoding': 'gzip, deflate',
    'content-type': 'application/json',
    'content-encoding': 'gzip',
    'origin': YTM_DOMAIN,
  };
}