# API Reference


## Classes


Main classes provided by the package


[NotFoundError](NotFoundError.md#gdtest_exceptions.NotFoundError)  
Raised when a requested resource is not found.

[PermissionError_](PermissionError_.md#gdtest_exceptions.PermissionError_)  
Raised when the user lacks permission.

[TimeoutError_](TimeoutError_.md#gdtest_exceptions.TimeoutError_)  
Raised when an operation times out.

[ValidationError](ValidationError.md#gdtest_exceptions.ValidationError)  
Raised when input validation fails.


## Exceptions


Exception classes


[AppError](AppError.md#gdtest_exceptions.AppError)  
Base exception for the application.