How to use the mirakuru.exceptions.AlreadyRunning function in mirakuru

def start(self):
        """
        Start executor with additional checks.

        Checks if previous executor isn't running then start process
        (executor) and wait until it's started.
        """
        if self.pre_start_check():
            # Executor or other process is running with same config.
            raise AlreadyRunning(self)

        Executor.start(self)
        self.wait_for(self.after_start_check)

def start(self: ExecutorType) -> ExecutorType:
        """
        Start executor with additional checks.

        Checks if previous executor isn't running then start process
        (executor) and wait until it's started.
        :returns: itself
        :rtype: Executor
        """
        if self.pre_start_check():
            # Some other executor (or process) is running with same config:
            raise AlreadyRunning(self)

        super(Executor, self).start()

        self.wait_for(self.check_subprocess)
        return self

def start(self):
        """
        Reimplements Executor and SimpleExecutor start to allow setting stdin/stdout/stderr/cwd

        It may break input/output/communicate, but will ensure child output redirects won't
        break parent process by filling the PIPE.
        Also, catches ProcessExitedWithError and raise FileNotFoundError if exitcode was 127
        """
        if self.pre_start_check():
            # Some other executor (or process) is running with same config:
            raise AlreadyRunning(self)

        if self.process is None:
            command = self.command
            if not self._shell:
                command = self.command_parts

            if isinstance(self.stdio, (list, tuple)):
                stdin, stdout, stderr = self.stdio
            else:
                stdin = stdout = stderr = self.stdio
            env = os.environ.copy()
            env[ENV_UUID] = self._uuid
            popen_kwargs = {
                "shell": self._shell,
                "stdin": stdin,
                "stdout": stdout,