docs(examples): Show duration parsing

Cargo.toml

@@ -140,6 +140,7 @@ trybuild = "1.0.18"
 rustversion = "1"
 # Cutting out `filesystem` feature
 trycmd = { version = "0.13", default-features = false, features = ["color-auto", "diff", "examples"] }
+humantime = "2"
 
 [[example]]
 name = "demo"

examples/typed-derive.md

@@ -15,13 +15,14 @@ OPTIONS:
     -h, --help               Print help information
     -I <DIR>                 Allow invalid UTF-8 paths
     -O <OPTIMIZATION>        Implicitly using `std::str::FromStr`
+        --sleep <SLEEP>      Allow human-readable durations
 
 ```
 
 Optimization-level (number)
 ```console
 $ typed-derive -O 1
-Args { optimization: Some(1), include: None, defines: [] }
+Args { optimization: Some(1), include: None, sleep: None, defines: [] }
 
 $ typed-derive -O plaid
 ? failed
@@ -34,14 +35,27 @@ For more information try --help
 Include (path)
 ```console
 $ typed-derive -I../hello
-Args { optimization: None, include: Some("../hello"), defines: [] }
+Args { optimization: None, include: Some("../hello"), sleep: None, defines: [] }
+
+```
+
+Time
+```console
+$ typed-derive --sleep 10s
+Args { optimization: None, include: None, sleep: Some(Duration(10s)), defines: [] }
+
+$ typed-derive --sleep forever
+? failed
+error: Invalid value "forever" for '--sleep <SLEEP>': expected number at 0
+
+For more information try --help
 
 ```
 
 Defines (key-value pairs)
 ```console
 $ typed-derive -D Foo=10 -D Alice=30
-Args { optimization: None, include: None, defines: [("Foo", 10), ("Alice", 30)] }
+Args { optimization: None, include: None, sleep: None, defines: [("Foo", 10), ("Alice", 30)] }
 
 $ typed-derive -D Foo
 ? failed

examples/typed-derive.rs

@@ -13,6 +13,10 @@ struct Args {
     #[clap(short = 'I', parse(from_os_str), value_name = "DIR", value_hint = clap::ValueHint::DirPath)]
     include: Option<std::path::PathBuf>,
 
+    /// Allow human-readable durations
+    #[clap(long)]
+    sleep: Option<humantime::Duration>,
+
     /// Hand-written parser for tuples
     #[clap(short = 'D', parse(try_from_str = parse_key_val), multiple_occurrences(true))]
     defines: Vec<(String, i32)>,