pub fn from_str<'de, T>(s: &'de str) -> Result<T, Error> where
    T: Deserialize<'de>, Expand description
Deserializes a string into a type.
This function will attempt to interpret s as a TOML document and
deserialize T from the document.
Examples
#[macro_use]
extern crate serde_derive;
extern crate toml;
#[derive(Deserialize)]
struct Config {
    title: String,
    owner: Owner,
}
#[derive(Deserialize)]
struct Owner {
    name: String,
}
fn main() {
    let config: Config = toml::from_str(r#"
        title = 'TOML Example'
        [owner]
        name = 'Lisa'
    "#).unwrap();
    assert_eq!(config.title, "TOML Example");
    assert_eq!(config.owner.name, "Lisa");
}