readBytes abstract method
Sends an HTTP GET request with the given headers to the given URL and returns a Future that completes to the body of the response as a list of bytes.
The Future will emit a ClientException if the response doesn't have a success status code.
For more fine-grained control over the request and response, use send or get instead.
Implementation
Future<Uint8List> readBytes(Uri url, {Map<String, String>? headers});