I'm reading about:
and as a first example I see:
[...] reader.read_line(&mut line)?; [...]
Then I am trying to find that function read_line at the left of the documentation, but it is not listed there!!!
I finally found it, but tbh, discoveribility of functions one can use with type is at the moment poor. It could be better if there (at the left side of documentation page for a type/trait, whatever) was a section called let's say "inherited" which would list all the functions that we are able to use with the type and those functions are coming from other traits that type implements.