Doc: Multiple accepted nonce lengths
//! # Exceptions:
//! An exception will be thrown if:
//! - The length of the `key` is not `32` bytes
-//! - The length of the `nonce` is not `12` bytes
+//! - The length of the `nonce` is not of an accepted length (check `constants` to see list)
//! - The length of `dst_out` is less than `plaintext` or `ciphertext`
//! - `plaintext` or `ciphertext` are empty
//! - `plaintext` or `ciphertext` are longer than (2^32)-2
