code: def isCaCert(self, name):
          '''
          Checks if a CA certificate exists.
  
          Args:
              name (str): The name of the CA keypair.
  
          Examples:
              Check if the CA certificate for "myca" exists:
  
                  exists = cdir.isCaCert('myca')
  
          Returns:
              bool: True if the certificate is present, False otherwise.
          '''
          crtpath = self._getPathJoin('cas', '%s.crt' % name)
          return os.path.isfile(crtpathf isCaCert(self, name):
          '''
          Checks if a CA certificate exists.
  
          Args:
              name (str): The name of the CA keypair.
  
          Examples:
              Check if the CA certificate for "myca" exists:
  
                  exists = cdir.isCaCert('myca')
  
          Returns:
              bool: True if the certificate is present, False otherwise.
          '''
          crtpath = self._getPathJoin('cas', '%s.crt' % name)
          return os.path.isfile(crtpath)
docs: Checks if a CA certificate exists.
  
          Args:
              name (str): The name of the CA keypair.
  
          Examples:
              Check if the CA certificate for "myca" exists:
  
                  exists = cdir.isCaCert('myca')
  
          Returns:
              bool: True if the certificate is present, False otherwise.