class PyCargoException(Exception):
    """Base exception for PyCargo"""

    pass


class InvalidHeaderException(PyCargoException):
    pass


class ValidationException(PyCargoException):
    def __init__(self, message: str):
        self.message = message

class PyCargoException(Exception):
    """Base exception for PyCargo"""

    pass


class InvalidHeaderException(PyCargoException):
    pass


class ValidationException(PyCargoException):
    def __init__(self, message: str):
        self.message = message

Base exception for PyCargo