Function try_values_from 

fn try_values_from<'a, T>(
    layer: &str,
) -> impl Parser<Input<'a>, Vec<T>, ErrMode<ParseStack<'a>>>
where
    T: FromStr,
    T::Err: Error + Send + Sync + 'static,

A parser helper for multi-value types, which returns a FromStr-style parser for types that don’t implement their own parser.

Parses a list of values, where each value is in its own line. Repeats until a blank line, the next section header (%...%) or the end of the file. The line ending of the last value is not consumed.

Errors

Returns an error if a value cannot be parsed into T or if the section layout does not match expectations.