text: class Credential:
      """
      Class that generates new instances of users
      """
      credential_list  = []
  
      def __init__(self,credential_name,usr_name,password,email):
          self.credential_name = credential_name
          self.usr_name = usr_name
          self.password = password
          self.email = email
  
      def save_credential(self):
  
  
  
          Credential.credential_list.append(self)
      
  
      def delete_credential(self):
  
  
  
          Credential.credential_list.remove(self)
  
  
      @classmethod
      def find_name_by_name(cls,name):
          for credential in cls.credential_list:
              if credential.credential_name == name:
                  return credential
  
  
      @classmethod
      def credential_exist(cls,name):
  
          for credential in cls.credential_list:
              if credential.password == name:
                  return credential
  
              return False
  
  
      @classmethod
      def display_credential(cls):
  
          return cls.credential_list