code: def dot(v1, v2):
      """Return the dot product of two vectors.
  
      Args:
          v1 (complex): First vector.
          v2 (complex): Second vector.
  
      Returns:
          double: Dot product.
      """
      return (v1 * v2.conjugate()).real
  
file_path: catboost/contrib/python/fonttools/fontTools/cu2qu/cu2qu.py
imports: import math
  from .errors import Error, ApproxNotFoundError
label_desc: Use image node_id 1 for calling a global function with example usage: dot(v1, v2) and returns: unknown