def setup(self):
    '\n        Prepares the actor for use.\n\n        :return: None if successful, otherwise error message\n        :rtype: str\n        '
    result = super().setup()
    if (result is None):
        if (self.get('end') < self.get('start')):
            result = ('End value (%s) must be smaller than start (%d)!' % (self.get('end'), self.get('start')))
    return result
Prepares the actor for use.

:return: None if successful, otherwise error message
:rtype: str
def setup(self):
    '\n        Prepares the actor for use.\n\n        :return: None if successful, otherwise error message\n        :rtype: str\n        '
    result = super().setup()
    if (result is None):
        if (self.get('end') < self.get('start')):
            result = ('End value (%s) must be smaller than start (%d)!' % (self.get('end'), self.get('start')))
    return result