interface JsonRpcNotification {
jsonrpc: '2.0'
method: string
params?: JsonRpcParams
}

interface JsonRpcRequest {
jsonrpc: '2.0'
id: JsonRpcId
method: string
params?: JsonRpcParams
}

type JsonRpcResponse =
| JsonRpcSuccess
| JsonRpcError

interface JsonRpcSuccess {
jsonrpc: '2.0'
id: JsonRpcId
result: T
}

interface JsonRpcError {
jsonrpc: '2.0'
id: JsonRpcId
error: JsonRpcErrorObject
}

interface JsonRpcErrorObject {
code: number
message: string
data?: T
}

function isJsonRpcNotification(val: unknown): val is JsonRpcNotification
function isntJsonRpcNotification(
val: T
): val is Exclude>

function isJsonRpcRequest(val: unknown): val is JsonRpcRequest
function isntJsonRpcRequest(val: T): val is Exclude>

function isJsonRpcSuccess(val: unknown): val is JsonRpcSuccess
function isntJsonRpcSuccess(val: T): val is Exclude>