:sig
String base64_encode(String raw)

:params
raw : binary-safe source string
return value : Base64 encoded string

:see
>string
base64_decode

:content
Encodes a string with Base64.

UCE strings can contain binary data, so `raw` may include NUL bytes and non-text bytes.

Example:



:example
print(base64_encode("hello"), "\n");