Function decode 

pub fn decode<V: Source + Sink>(
    ast: &Ast,
    request: &ProbeRequest,
    bytes: &[u8],
) -> Result<V, ProbeError>

Read bytes as request.type_name, in canonical form.

The value that comes back is already canonical — crate::canonical::text renders it, and crate::canonical::difference compares it against the sample that went in.

Errors

ProbeError, naming the path in the value or the offset in the stream.