addByte abstract method
void addByte(Append byte to the current contents of the builder.
The byte will be bit-representation truncated to the range 0 .. 255.
Source
void addByte(int byte);
© 2012 the Dart project authors
Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dartlang.org/stable/1.24.3/dart-io/BytesBuilder/addByte.html