old_contents: #!/usr/bin/env python
  # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <gogogo.vm@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  from ._factory import (
      SqliteSchemaTextExtractorFactory,
      SqliteSchemaTableExtractorFactory,
  )
  from ._interface import SqliteSchemaExtractorInterface
  
  
  class SqliteSchemaExtractor(SqliteSchemaExtractorInterface):
      __VALID_FORMAT_LIST = ["text", "table"]
  
      @property
      def verbosity_level(self):
          return self.__writer.verbosity_level
  
      def __init__(
              self, database_path, verbosity_level=None, output_format="table"):
          format_mapping = {
              "text": SqliteSchemaTextExtractorFactory,
              "table": SqliteSchemaTableExtractorFactory,
          }
          extractor_factory = format_mapping.get(output_format)(database_path)
  
          if extractor_factory is None:
              raise ValueError("unknown format: expected={}, actual={}".format(
                  list(format_mapping), output_format))
  
          self.__writer = extractor_factory.create(verbosity_level)
  
      def get_table_name_list(self):
          return self.__writer.get_table_name_list()
  
      def get_table_schema(self, table_name):
          return self.__writer.get_table_schema(table_name)
  
      def get_table_schema_text(self, table_name):
          return self.__writer.get_table_schema_text(table_name)
  
      def get_database_schema(self):
          return self.__writer.get_database_schema()
  
      def dumps(self):
          return self.__writer.dumps()
  
new_contents: #!/usr/bin/env python
  # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <gogogo.vm@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  from ._factory import (
      SqliteSchemaTextExtractorFactory,
      SqliteSchemaTableExtractorFactory,
  )
  from ._interface import SqliteSchemaExtractorInterface
  
  
  class SqliteSchemaExtractor(SqliteSchemaExtractorInterface):
      __VALID_FORMAT_LIST = ["text", "table"]
  
      @property
      def verbosity_level(self):
          return self.__writer.verbosity_level
  
      def __init__(
              self, database_source, verbosity_level=None, output_format="table"):
          format_mapping = {
              "text": SqliteSchemaTextExtractorFactory,
              "table": SqliteSchemaTableExtractorFactory,
          }
          extractor_factory = format_mapping.get(output_format)(database_source)
  
          if extractor_factory is None:
              raise ValueError("unknown format: expected={}, actual={}".format(
                  list(format_mapping), output_format))
  
          self.__writer = extractor_factory.create(verbosity_level)
  
      def get_table_name_list(self):
          return self.__writer.get_table_name_list()
  
      def get_table_schema(self, table_name):
          return self.__writer.get_table_schema(table_name)
  
      def get_table_schema_text(self, table_name):
          return self.__writer.get_table_schema_text(table_name)
  
      def get_database_schema(self):
          return self.__writer.get_database_schema()
  
      def dumps(self):
          return self.__writer.dumps()
  
subject: Rename a argument to be more precisely represent the argument objective