class PerplexityError(Exception):
    pass

class AuthenticationError(PerplexityError):
    pass

class RateLimitError(PerplexityError):
    pass

class NetworkError(PerplexityError):
    pass

class InvalidModeError(PerplexityError):
    pass

class InvalidModelError(PerplexityError):
    pass

class InvalidSourceError(PerplexityError):
    pass

class QueryLimitExceededError(PerplexityError):
    pass

class FileUploadError(PerplexityError):
    pass

class EmailnatorError(PerplexityError):
    pass

class AccountCreationError(PerplexityError):
    pass

class ParsingError(PerplexityError):
    pass

class ValidationError(PerplexityError):
    pass