text: from pyisemail.diagnosis import BaseDiagnosis
  
  
  class ValidDiagnosis(BaseDiagnosis):
  
      """A diagnosis indicating the address is valid for use."""
  
      DESCRIPTION = "Address is valid."
  
      MESSAGE = (
          "Address is valid. Please note that this does not mean "
          "the address actually exists, nor even that the domain "
          "actually exists. This address could be issued by the "
          "domain owner without breaking the rules of any RFCs."
      )
  
      def __init__(self, diagnosis_type="VALID"):
          self.diagnosis_type = diagnosis_type
          self.description = self.DESCRIPTION
          self.message = self.MESSAGE
          self.references = None
          self.code = 0
  