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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 _run_raw(self, cmd, ignore_errors=False):
 """Runs command directly, skipping tmux interface"""

    # TODO: capture stdout/stderr for feature parity with aws_backend
    result = os.system(cmd)
    if result != 0:
      if ignore_errors:
        self.log(f"command ({cmd}) failed.")
        assert False, "_run_raw failed"