packages/pyglGA/ECSS/System.py
def apply(self, Entity, event = None):
        """
        method to be subclassed for  behavioral or logic computation 
        when visits Entities. 
        
        """
        pass

        method to be subclassed for  behavioral or logic computation 
        when visits Entities. 
        
        
method to be subclassed for  behavioral or logic computation
when visits Entities.
method to be subclassed for behavioral or logic computation when visits Entities .
def apply(self, Entity, event = None):
        pass
def apply ( self , Entity , event = None ) : pass
method to be subclassed for  behavioral or logic computation
when visits Entities.
method to be subclassed for behavioral or logic computation when visits Entities .
"""
        method to be subclassed for  behavioral or logic computation 
        when visits Entities. 
        
        """
self
Entity
event