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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 sd(line, cell=None):
 """Implements the stackdriver cell magic for ipython notebooks. Args: line: the contents of the storage line. Returns: The results of executing the cell. """

  parser = google.datalab.utils.commands.CommandParser(prog='%sd', description=(
      'Execute various Stackdriver related operations. Use "%sd '
      '<stackdriver_product> -h" for help on a specific Stackdriver product.'))

  # %%sd monitoring
  _create_monitoring_subparser(parser)
  return google.datalab.utils.commands.handle_magic_line(line, cell, parser)