method call error handling

common errors and solutions

1. BadMethodInvalid:

   Cause: Method NodeId not found or incorrect
   Solution: Verify method exists and NodeId is correct

2. BadInvalidArgument:

   Cause: Input parameters don't match method signature
   Solution: Check argument names, types, and values

3. BadUserAccessDenied:

   Cause: Insufficient permissions to call method
   Solution: Verify user credentials and method permissions

4. BadTooManyOps:

   Cause: Server overloaded with requests
   Solution: Implement rate limiting or retry logic