code: def __init__(self, lines, arrows):
      self.lines = lines
      self.arrows = arrows
  
imports: import numpy
  import matplotlib
  from matplotlib import _api, cm, patches
  import matplotlib.colors
  import matplotlib.collections
  import matplotlib.lines
label_desc: Use image node_id 1 to create a new StreamplotSet object  with example: obj = StreamplotSet(lines, arrows)