code: def fairness_threshold(fairness_threshold):
      """Checks if fairness_threshold is a number greater than 1.
      :param fairness_threshold: a threshold value
      :type fairness_threshold: number
      """
      if fairness_threshold is not None:
          try:
              if fairness_threshold <= 1:
                  raise ValueError(
                      f"Fairness Threshold value must be greater than 1."
                  )
          except TypeError:
              print("Fairness Threshold value must be a number")
              raise
  
file_path: aequitas/src/aequitas/plot/commons/validators.py
imports: from aequitas.plot.commons.style import sizes
  from aequitas.plot.commons.helpers import calculate_chart_size_from_elements, to_list
label_desc: Use image node_id 4 for calling a global function with example usage: fairness_threshold(fairness_threshold) without return types