MakeRestClient is the factory for constructing a RestClient for a given endpoint.

HTTPError is generated when we receive an unhandled error from the server.

RestClient manages the REST interface for a calling user.

RawResponse is fulfilled by responses that should not be decoded as json.

Blob represents arbitrary blob of data satisfying RawResponse interface.

BytesBase64 is a base64-encoded binary blob (i.e., []byte), for use with text encodings like JSON.