(self, formula)
Returns a dictionary containing all the annotations for the given
        formula as keys and the respective values. None is returned if
        formula has no annotations.
Returns a dictionary containing all the annotations for the given
        formula as keys and the respective values. None is returned if
        formula has no annotations.
Returns a dictionary containing all the annotations for the given formula as keys and the respective values . None is returned if formula has no annotations .
def annotations(self, formula):
        """Returns a dictionary containing all the annotations for the given
        formula as keys and the respective values. None is returned if
        formula has no annotations.
        """
        try:
            return self._annotations[formula]
        except KeyError:
            return None
def annotations ( self , formula ) : try : return self . _annotations [ formula ] except KeyError : return None