code: def test_run(main=False):
      if False:
          datas = [testcommon.getdata(i) for i in range(chkdatas)]
          testcommon.runtest(
              datas,
              testcommon.TestStrategy,
              main=main,
              plot=main,
              chkind=chkind,
              chkmin=chkmin,
              chkvals=chkvals,
          )
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import testcommon
  import backtrader
label_desc: Use image node_id 1 for calling a global function with example usage: test_run(main) without return types