I use a library that finally results in the output of this library in an io.Writer is written.
Now more I have data on this io.Writer to another library I have to pass that library just io.Reader accepts.
What should I do? Is there a way to copy a writer to reader?
// i have a writer and i'll give it to the library
_ = png.Econde(writer,img)
// Now I need to pass it to another library as a reader
_ = myLibrary.Read(??)