input: def find_larger_value(a, b):
      """
      Define a function that accepts integers, floats, or strings representing
      numerical values, and returns the larger value in its respective type.
      If the values are equivalent, return None.
      Note: A numeric string can have a floating point represented as . or ,
  
      find_larger_value(1, 2.5) ➞ 2.5
      find_larger_value(1, "2,3") ➞ "2,3"
      find_larger_value("5,1", "6") ➞ "6"
      find_larger_value("1", 1) ➞ None
      """
output:     # Ensure both a and b are of type string
      str_a = str(a)
      str_b = str(b)
      
      # Replace ',' with '.' for numerical comparison
      str_a = str_a.replace(',', '.')
      str_b = str_b.replace(',', '.')
      
      # Convert the strings to floats
      float_a = float(str_a)
      float_b = float(str_b)
      
      # Compare the numerical values
      if float_a > float_b:
          return a
      elif float_b > float_a:
          return b
      else:
          return None