code: def thickness(self, val):
      self["thickness"] = val
  
file_path: plotly.py/packages/python/plotly/plotly/graph_objs/indicator/gauge/_step.py
imports: from plotly.basedatatypes import BaseTraceHierarchyType
  import copy
label_desc: Use image node_id 12 for calling the Step obj's underlying member method code with example usage: obj.thickness(val) without return types