| 123456789101112131415161718192021222324252627282930313233343536373839 | from typing import Optionalclass LLMError(Exception):    """Base class for all LLM exceptions."""    description: Optional[str] = None    def __init__(self, description: Optional[str] = None) -> None:        self.description = descriptionclass LLMBadRequestError(LLMError):    """Raised when the LLM returns bad request."""    description = "Bad Request"class ProviderTokenNotInitError(Exception):    """    Custom exception raised when the provider token is not initialized.    """    description = "Provider Token Not Init"    def __init__(self, *args, **kwargs):        self.description = args[0] if args else self.descriptionclass QuotaExceededError(Exception):    """    Custom exception raised when the quota for a provider has been exceeded.    """    description = "Quota Exceeded"class ModelCurrentlyNotSupportError(Exception):    """    Custom exception raised when the model not support    """    description = "Model Currently Not Support"
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