from
Parses the GET /info JSON response into a Sep31InfoResponse.
The receive object is optional at the top level. A response with no receive key, or with receive set to an empty object, is parsed as a Sep31InfoResponse with an empty receiveAssets map (this is rare in production but spec-conformant).
Return
The parsed info response.
Parameters
json
The JSON object returned by the Receiving Anchor.
Throws
when a receive[<code>] entry is malformed.