#!/usr/bin/env python3

# This module is commonly used by others in here and should avoid
# taking any unnecessary dependencies back on them.

class PreconditionException(AssertionError):
    pass


class PostconditionException(AssertionError):
    pass


class TimeoutError(Exception):
    def __init__(self, value: str = "Timed out"):
        self.value = value

    def __str__(self):
        return repr(self.value)