Preconfigured engines for common use cases.

These are re-exports of const engines in [crate::engine::general_purpose], renamed with a BASE64_ prefix for those who prefer to use the entire path to a name.

Examples

use base64::prelude::{Engine as _, BASE64_STANDARD_NO_PAD};

assert_eq!("c29tZSBieXRlcw", &BASE64_STANDARD_NO_PAD.encode(b"some bytes"));