class NexusTraderError(Exception):
    def __init__(self, message: str):
        self.message = message
        super().__init__(self.message)

class EngineBuildError(NexusTraderError):
    def __init__(self, message: str):
        super().__init__(message)

class SubscriptionError(NexusTraderError):
    def __init__(self, message: str):
        super().__init__(message)

class KlineSupportedError(NexusTraderError):
    def __init__(self, message: str):
        super().__init__(message)

class StrategyBuildError(NexusTraderError):
    def __init__(self, message: str):
        super().__init__(message)

class OrderError(NexusTraderError):
    def __init__(self, message: str):
        super().__init__(message)
