code: def repr_split(self):
      return f"{self.feature} {{=, ≠}} {self.value}"
  
imports: from __future__ import annotations
  import abc
  import math
  from ..base import Branch
label_desc: Use image node_id 6 for calling the NominalBinaryBranch obj's underlying member method code with example usage: obj.repr_split() and returns: self, str, self