class_docstr: Labelled arrow for use as a quiver plot scale key.
class_docstr_tok: ["Labelled","arrow","for","use","as","a","quiver","plot","scale","key","."]
code: def draw(self, renderer):
      self._init()
      self.vector.draw(renderer)
      pos = self.get_transform().transform((self.X, self.Y))
      self.text.set_position(pos + self._text_shift())
      self.text.draw(renderer)
      self.stale = False
  
imports: import math
  import numpy
  from numpy import ma
  from matplotlib import _api, cbook, _docstring
  import matplotlib.artist
  import matplotlib.collections
  from matplotlib.patches import CirclePolygon
  import matplotlib.text
  import matplotlib.transforms
label_desc: Use image node_id 5 for calling the QuiverKey obj's underlying member method code with example usage: obj.draw(renderer) without return types