input: 
  class IntList:
      """A simple data structure to store integer values. The class provides methods
      to add values to the list and find the minimum value in the list.
      >>> int_list = IntList()
      >>> int_list.add_value(5)
      >>> int_list.add_value(3)
      >>> int_list.add_value(8)
      >>> int_list.find_min()
      3
      """
      def __init__(self):
          self.values = []
     
      def add_value(self, value):
          self.values.append(value)
      
      def find_min(self):
          return min(self.values)
  
output:     
      def find_min(self):
          if not self.values:
              raise ValueError("The list is empty")
          return min(self.values)
  