DefaultHTTPClient is used to create an http client with some default parameters.

New returns a Client pointed at the given address.

NewWithHTTPClient returns a Client pointed at the given address using a custom HTTP client.

NewWS returns a new client with default options.

Client is a JSON-RPC client, which sends POST HTTP requests to the remote server.

RequestBatch allows us to buffer multiple request/response structures into a single batch request.

WSClient is a JSON-RPC client, which uses WebSocket for communication with the remote server.

A Caller handles the round trip of a single JSON-RPC request.