code: def __repr__(self):
      return f"P: {self.p:6.2%} R: {self.r:6.2%} F: {self.f:6.2%}"
  
imports: from collections import Counter
label_desc: Use image node_id 3 for calling the SpanMetric obj's underlying member method code with example usage: obj.__repr__() and returns: str, self, str, self, str, self