```let v_o: Option<Vec<u8>> = ???
let ...
# developmentw
witty-crayon-22786
11/09/2017, 1:58 AM Copy code
let v_o: Option<Vec<u8>> = ???
let v: Option<Result<Vec<u8>>> = v_o.map(|v| Ok(v))
v.unwrap_or_else(|| ???)witty-crayon-22786
11/09/2017, 1:58 AMlet v_o: Option<Vec<u8>> = ???
let v: Option<Result<Vec<u8>>> = v_o.map(|v| Ok(v))
v.unwrap_or_else(|| ???)