class_docstr: A linear transform with a scale and offset.
class_docstr_tok: ["A","linear","transform","with","a","scale","and","offset","."]
code: def back_pt(self, pt):
      return (pt - self.offset) / self.scale
  
imports: import numbers
  from pysc2.lib import point
label_desc: Use image node_id 5 for calling the Linear obj's underlying member method code with example usage: obj.back_pt(pt) and returns: unknown