A JSON number with an integer value, within a certain range
(currently -2**63...+2**63-1).
+<value>
+
+ Any JSON value.
+
Schema Format
-------------
Request object members:
"method": "cancel" required
- "params": the "id" for an outstanding request required
+ "params": [the "id" for an outstanding request] required
"id": null required
Response object members:
Request object members:
"method": "echo" required
- "params": any JSON value required
- "id": any JSON value required
+ "params": JSON array with any contents required
+ "id": <value> required
Response object members: