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)
      x, y = self.get_transform().transform_point((self.X, self.Y))
      self.text.set_x(self._text_x(x))
      self.text.set_y(self._text_y(y))
      self.text.draw(renderer)
      self.stale = False
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import six
  import math
  import weakref
  import numpy
  from numpy import ma
  import matplotlib.collections
  import matplotlib.transforms
  import matplotlib.text
  import matplotlib.artist
  from matplotlib.artist import allow_rasterization
  from matplotlib import docstring
  import matplotlib.font_manager
  from matplotlib.cbook import delete_masked_points
  from matplotlib.patches import CirclePolygon
label_desc: Use image node_id 6 for calling the QuiverKey obj's underlying member method code with example usage: obj.draw(renderer) without return types