fix open_dataset validate and allow skipping IO

[imanjra]

What changes are proposed in this pull request?

• Fix open_dataset validation error when the optional dataset_name param is not provided (can be undefined to unselect current dataset)
• Small optimization to skip IO resolution is method is not provided by an operator

How is this patch tested? If it is not, please explain why.

Using an example operator in the app and unit test

Release Notes

Is this a user-facing change that should be mentioned in the release notes?

• [ ] No. You can skip the rest of this section.
• [x] Yes. Give a description of this change to be included in the release notes for FiftyOne users.

See the list above

What areas of FiftyOne does this PR affect?

• [x] App: FiftyOne application changes
• [ ] Build: Build and test infrastructure changes
• [ ] Core: Core fiftyone Python library changes
• [ ] Documentation: FiftyOne documentation changes
• [ ] Other

Summary by CodeRabbit

• New Features

  • Added skipInput and skipOutput properties to operator configurations for enhanced control over input/output processing.
  • Implemented a new utility function to check if methods are overridden in subclasses.

• Bug Fixes

  • Removed the required constraint for the "dataset" input parameter in the OpenDataset class to improve flexibility.

• Tests

  • Added unit tests to validate the new utility function for detecting overridden methods in operator classes.

[coderabbitai[bot]]

Walkthrough

The updates primarily focus on enhancing the Operator class functionalities and improving the flexibility of input and output handling in the OpenDataset class. Additionally, new utility functions and unit tests have been introduced to support these changes. The modifications allow for optional dataset input, the ability to skip input/output processing, and dynamic method checking for operator configurations.

Changes

File Path	Change Summary
app/packages/operators/src/built-in-operators.ts	Modified OpenDataset class to make the "dataset" input parameter optional.
app/packages/operators/src/operators.ts	Added skipInput and skipOutput properties to OperatorConfigOptions and OperatorConfig classes. Updated Operator class methods to respect these properties.
fiftyone/operators/server.py	Enhanced ListOperators class to dynamically update configurations based on overridden methods.
fiftyone/operators/utils.py	Introduced is_method_overridden function to check if a method is overridden in a subclass.
tests/unittests/operators/utils_tests.py	Added unit tests to verify the functionality of the is_method_overridden utility function.

Poem

In the land of code where rabbits play,
Operators now have a say,
Inputs optional, outputs too,
Flexibility in what they do.
With tests to guide and methods clear,
Our code hops forward, have no fear!
🐇💻✨

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