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 _set_transform(self):
      self.set_transform(
          _api.check_getitem(
              {
                  "data": self.Q.axes.transData,
                  "axes": self.Q.axes.transAxes,
                  "figure": self.Q.axes.figure.transFigure,
                  "inches": self.Q.axes.figure.dpi_scale_trans,
              },
              coordinates=self.coord,
          )
      )
  
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 6 for calling the QuiverKey obj's underlying member method code with example usage: obj._set_transform() without return types