def get(self, logical_id, property):
<EOL>prop_values = self.get_all(logical_id)<EOL>if prop_values:<EOL><INDENT>return prop_values.get(property, None)<EOL><DEDENT>else:<EOL><INDENT>return None<EOL><DEDENT>
Returns the value of the reference for given logical_id at given property. Ex: MyFunction.Alias

:param logical_id: Logical Id of the resource
:param property: Property of the resource you want to resolve. None if you want to get value of all properties
:return: Value of this property if present. None otherwise