code: def catalyst_magic(line, cell=None):
      """The catalyst IPython cell magic."""
      load_extensions(
          default=True,
          extensions=[],
          strict=True,
          environ=os.environ,
      )
      try:
          return run.main(
              # put our overrides at the start of the parameter list so that
              # users may pass values with higher precedence
              [
                  "--algotext",
                  cell,
                  "--output",
                  os.devnull,  # don't write the results by default
              ]
              + (
                  [
                      # these options are set when running in line magic mode
                      # set a non None algo text to use the ipython user_ns
                      "--algotext",
                      "",
                      "--local-namespace",
                  ]
                  if cell is None
                  else []
              )
              + line.split(),
              "%s%%catalyst" % ((cell or "") and "%"),
              # don't use system exit and propogate errors to the caller
              standalone_mode=False,
          )
      except SystemExit as e:
          # https://github.com/mitsuhiko/click/pull/533
          # even in standalone_mode=False `--help` really wants to kill us ;_;
          if e.code:
              raise ValueError(
                  "main returned non-zero status code: %d" % e.code
              )
  
imports: import errno
  import os
  from functools import wraps
  import re
  import click
  import sys
  import logbook
  import pandas
  from catalyst.marketplace.marketplace import Marketplace
  from six import text_type
  from catalyst.data import bundles
  from catalyst.exchange.exchange_bundle import ExchangeBundle
  from catalyst.exchange.utils.exchange_utils import delete_algo_folder
  from catalyst.utils.cli import Date, Timestamp
  from catalyst.utils.run_algo import _run, load_extensions
  from catalyst.exchange.utils.bundle_utils import EXCHANGE_NAMES
  from catalyst.utils.remote import remote_backtest, get_remote_status
label_desc: Use image node_id 5 for calling a global function with example usage: catalyst_magic(line, cell) and returns: run