old_contents: from ..constants import MD
  from ..converter import KnowledgePostConverter
  from knowledge_repo.utils.files import read_text
  
  class MdConverter(KnowledgePostConverter):
      _registry_keys = [MD]
  
      def from_file(self, filename):
          self.kp_write(read_text(filename))
  
new_contents: from ..constants import MD
  from ..converter import KnowledgePostConverter
  from knowledge_repo.utils.files import read_text
  
  
  class MdConverter(KnowledgePostConverter):
      _registry_keys = [MD]
  
      def from_file(self, filename):
          self.kp_write(read_text(filename))
  
subject: Fix a lint required empty lines issue