How to set padding for base64 encoding

[Suliman via Digitalmars-d-learn]

On Thursday, 7 April 2016 at 12:19:48 UTC, Kagamin wrote:
> Create a range that would remove the newline characters from 
> string, then decode from that.

std.file.write("output.png", Base64.decode(myimg.chomp));

The same error