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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _CreateProcessingConfiguration(self, knowledge_base):
 """Creates a processing configuration. Args: knowledge_base (KnowledgeBase):
 contains information from the source data needed for parsing. Returns: ProcessingConfiguration: processing configuration. Raises: BadConfigOption: if more than 1 parser and parser plugins preset was found for the detected operating system. """

    # TODO: pass preferred_encoding.
    configuration = configurations.ProcessingConfiguration()
    configuration.artifact_filters = self._artifact_filters
    configuration.credentials = self._credential_configurations
    configuration.debug_output = self._debug_mode
    configuration.event_extraction.text_prepend = self._text_prepend
    configuration.extraction.hasher_file_size_limit = (
        self._hasher_file_size_limit)
    configuration.extraction.hasher_names_string = self._hasher_names_string
    configuration.extraction.process_archives = self._process_archives
    configuration.extraction.process_compressed_streams = (
        self._process_compressed_streams)
    configuration.extraction.yara_rules_string = self._yara_rules_string
    configuration.filter_file = self._filter_file
    configuration.input_source.mount_path = self._mount_path
    configuration.log_filename = self._log_file
    configuration.parser_filter_expression = self._parser_filter_expression
    configuration.preferred_year = self._preferred_year
    configuration.profiling.directory = self._profiling_directory
    configuration.profiling.sample_rate = self._profiling_sample_rate
    configuration.profiling.profilers = self._profilers
    configuration.temporary_directory = self._temporary_directory

    if not configuration.parser_filter_expression:
      operating_system = knowledge_base.GetValue('operating_system')
      operating_system_product = knowledge_base.GetValue(
          'operating_system_product')
      operating_system_version = knowledge_base.GetValue(
          'operating_system_version')
      preset_definitions = (
          parsers_manager.ParsersManager.GetPresetsForOperatingSystem(
              operating_system, operating_system_product,
              operating_system_version))

      if preset_definitions:
        preset_names = [
            preset_definition.name for preset_definition in preset_definitions]
        filter_expression = ','.join(preset_names)

        logger.info('Parser filter expression set to: {0:s}'.format(
            filter_expression))
        configuration.parser_filter_expression = filter_expression

    return configuration