-`decode(b string/bytes) => object`: Parses the JSON string and returns an object.
-`encode(o object) => bytes`: Returns the JSON string (bytes) of the object. Unlike Go's JSON package, this function does not HTML-escape texts, but, one can use `html_escape` function if needed.
-`indent(b string/bytes) => bytes`: Returns an indented form of input JSON bytes string.
-`html_escape(b string/bytes) => bytes`: Return an HTML-safe form of input JSON bytes string.