code: def _average_geometric(u, v):
      return math.sqrt(u * v)
  
imports: from __future__ import annotations
  import math
  import numpy
  from river import metrics
  from river.metrics.expected_mutual_info import expected_mutual_info
label_desc: Use image node_id 2 for calling a global function with example usage: _average_geometric(u, v) and returns: math