* fix: ExampleGenerator correctly generates allOf composed schemas
Changes the previous behavior of generating `null` examples for allOf composed schemas.
Fixes#17497
* fix: ExampleGenerator correctly generates anyOf and oneOf composed schemas
Changes the previous behavior of generating `null` examples for anyOf and oneOf composed schemas.
To generate a oneOf/anyOf example, we generate the example using the first valid schema available. In case of a $ref, we use the first valid reference.
Fixes#17497
* Mustache template should use invokerPackage tag to generate import
* add JsonSubTypes annotation to handle scenario when OAS name has special characters
* add JsonSubTypes annotation to handle scenario when OAS name has special characters. Add unit test
* run sample scripts
* fix unit test
* run sample scripts
* add minimal openapi document to show issue with special characters and discriminators
* Add 'isClassnameSanitized' tag
* Add 'isClassnameSanitized' tag
* Add 'isClassnameSanitized' tag
* Add 'isClassnameSanitized' tag
* Add 'isClassnameSanitized' tag
* Add 'isClassnameSanitized' tag
* Add unit tests for unmarshaling of discriminators with special characters
* Add unit tests for unmarshaling of discriminators with special characters
* use JsonTypeName
Co-authored-by: Vikrant Balyan (vvb) <vvb@cisco.com>
Co-authored-by: William Cheng <wing328hk@gmail.com>
