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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 ReadSystemConfigurationArtifact( self, system_configuration, session_identifier=CURRENT_SESSION):
 """Reads the knowledge base values from a system configuration artifact. Note that this overwrites existing values in the knowledge base. Args: system_configuration (SystemConfigurationArtifact):
 system configuration artifact. session_identifier (Optional[str])):
 session identifier, where CURRENT_SESSION represents the active session. """

    if system_configuration.code_page:
      try:
        self.SetCodepage(system_configuration.code_page)
      except ValueError:
        logger.warning(
            'Unsupported codepage: {0:s}, defaulting to {1:s}'.format(
                system_configuration.code_page, self._codepage))

    self._hostnames[session_identifier] = system_configuration.hostname

    self.SetValue('keyboard_layout', system_configuration.keyboard_layout)

    self.SetValue('operating_system', system_configuration.operating_system)
    self.SetValue(
        'operating_system_product',
        system_configuration.operating_system_product)
    self.SetValue(
        'operating_system_version',
        system_configuration.operating_system_version)

    if system_configuration.time_zone:
      try:
        self.SetTimeZone(system_configuration.time_zone)
      except ValueError:
        logger.warning(
            'Unsupported time zone: {0:s}, defaulting to {1:s}'.format(
                system_configuration.time_zone, self.timezone.zone))

    self._user_accounts[session_identifier] = {
        user_account.username: user_account
        for user_account in system_configuration.user_accounts}