示例#1
0
    def __contains__(self, p):
		abstract()
示例#2
0
 def _from_two_points(self, p1, p2):
     abstract()
示例#3
0
 def _from_three_points(self, p1, p2, p3):
     abstract()
示例#4
0
	def pack(self, **kwargs):
		abstract()