/// URL `str` typically for Uniform Resource Locator.
///
/// Example:
///
/// ```
/// let s: UrlStr = "https://example.com";
/// ```
///
pub type UrlStr = str;
/// URL `String` typically for Uniform Resource Locator.
///
/// Example:
///
/// ```
/// let s: UrlString = UrlString::from("https://example.com");
/// ```
///
pub type UrlString = String;