#NEWLINE# @ property #NEWLINE# @ cache . collection_cache ( 'issue.Issue' , '_get_related_type_children' ) #NEWLINE# def get_related_type_children( self ) : #NEWLINE# #INDENT# return [ i . child for i in IssueRelation . objects . filter ( parent = self , relation_type = IssueRelation . IssueRelationType . TYPE ) ]