code: def _make_yolo_row(bounding_box, target, confidence=None):
      xtl, ytl, w, h = bounding_box
      xc = xtl + 0.5 * w
      yc = ytl + 0.5 * h
      row = "%d %f %f %f %f" % (target, xc, yc, w, h)
  
      if confidence is not None:
          row += " %f" % confidence
  
      return row
  
imports: import logging
  import os
  import warnings
  import yaml
  import eta.core.utils
  import fiftyone.core.labels
  import fiftyone.core.storage
  import fiftyone.utils.data
label_desc: Use image node_id 7 for calling a global function with example usage: _make_yolo_row(bounding_box, target, confidence) and returns: row