"Result" monad's "Left" and "Right" types are reversed

[mikepii]

Result is defined as:

jsonrpcserver/jsonrpcserver/result.py

Line 34 in f489ed8

Result = Either[SuccessResult, ErrorResult]

However, the runtime values are reversed:

jsonrpcserver/jsonrpcserver/dispatcher.py

Lines 105 to 114 in f489ed8

	def validate_result(result: Result) -> None:
	"""Validate the return value from a method.
	Raises an AssertionError if the result returned from a method is invalid.
	Returns: None
	"""
	assert (isinstance(result, Left) and isinstance(result._error, ErrorResult)) or (
	isinstance(result, Right) and isinstance(result._value, SuccessResult)
	), f"The method did not return a valid Result (returned {result!r})"

Therefore mypy complains if users type their methods with -> Result.

[bcb]

Are you able to send a PR for this?

[bcb]

Otherwise I can do it later today.

Thanks for reporting by the way.

[mikepii]

sure, I'll send a PR