class_docstr: An item represent an object within a collection and is created on demand
  when accessing a specific object of the collection.
class_docstr_tok: ["An","item","represent","an","object","within","a","collection","and","is","created","on","demand","when","accessing","a","specific","object","of","the","collection","."]
code: def vertices(self):
      return self._vertices
  
imports: from __future__ import division
  import math
  import numpy
  from ...gloo import Texture2D, VertexBuffer, IndexBuffer
  from .util import dtype_reduce
  from .array_list import ArrayList
label_desc: Use image node_id 2 for calling the Item obj's underlying member method code with example usage: obj.vertices() and returns: self