old_contents: from wcontrol.conf.config import BMI, BFP
  
  
  class results(object):
      def __init__(self, control, gender):
          self.bmi = self.get_bmi(control.bmi)
          self.fat = self.get_fat(control.fat, gender)
  
      def get_bmi(self, bmi):
          for limit, msg in BMI:
              if bmi <= limit:
                  return msg
  
      def get_fat(self, fat, gender):
          for limit_w, limit_m, msg in BFP:
              if gender == 'Feminine' and fat <= limit_w:
                  return msg
              if gender == 'Masculine' and fat <= limit_m:
                  return msg
  
new_contents: from wcontrol.conf.config import BMI, BFP, MUSCLE
  
  
  class results(object):
      def __init__(self, control, gender):
          self.bmi = self.get_bmi(control.bmi)
          self.fat = self.get_fat(control.fat, gender)
          self.muscle = self.get_muscle(control.muscle, gender)
  
      def get_bmi(self, bmi):
          for limit, msg in BMI:
              if bmi <= limit:
                  return msg
  
      def get_fat(self, fat, gender):
          for limit_w, limit_m, msg in BFP:
              if gender == 'Feminine' and fat <= limit_w:
                  return msg
              if gender == 'Masculine' and fat <= limit_m:
                  return msg
  
      def get_muscle(self, muscle, gender):
          for limit_w, limit_m, msg in MUSCLE:
              if gender == 'Feminine' and muscle <= limit_w:
                  return msg
              if gender == 'Masculine' and muscle <= limit_m:
                  return msg
  
subject: Add function to get the skeletal muscle result