code: def reset (self):
          
          # number of logged URLs
          self.number = 0
          # number of encountered URL errors
          self.errors = 0
          # number of URL errors that were printed
          self.errors_printed = 0
          # number of URL warnings
          self.warnings = 0
          # number of URL warnings that were printed
          self.warnings_printed = 0
          # number of internal errors
          self.internal_errors = 0
          # link types
          self.link_types = ContentTypes.copy()
          # URL length statistics
          self.max_url_length = 0
          self.min_url_length = 0
          self.avg_url_length = 0.0
          self.avg_number = 0
          # overall downloaded bytes
          self.downloaded_bytes = None
docs: Reset all log statistics to default values.