Base64Codec.urlSafe const constructor
const Base64Codec.urlSafe(Source
const Base64Codec.urlSafe() : _encoder = const Base64Encoder.urlSafe();© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-convert/Base64Codec/Base64Codec.urlSafe.html