73 def is_simple(sum):  argument
139     def visitSum(self, sum, name, depth):  argument
145     def simple_sum(self, sum, name, depth):  argument
156     def sum_with_constructors(self, sum, name, depth):  argument
176     def visitSum(self, sum, name, depth):  argument
205     def visitSum(self, sum, name, depth):  argument
209     def sum_with_constructors(self, sum, name, depth):  argument
282     def visitSum(self, sum, name):  argument
403     def visitSum(self, sum, name):  argument
406     def visitProduct(self, sum, name):  argument
412     def visitField(self, sum):  argument
454     def simpleSum(self, sum, name):  argument
472     def complexSum(self, sum, name):  argument
505     def visitAttributeDeclaration(self, a, name, sum=sum):  argument
509     def visitSum(self, sum, name):  argument
540     def visitFieldDeclaration(self, field, name, sum=None, prod=None, depth=0):  argument
563     def visitField(self, field, name, sum=None, prod=None, depth=0):  argument
643     def visitSum(self, sum, name):  argument
670     def visitSum(self, sum, name):  argument
1079     def visitSum(self, sum, name):  argument
1171     def visitSum(self, sum, name):  argument
1216     def visitSum(self, sum, name):  argument
1234     def simpleSum(self, sum, name):  argument