code: def keypoint_detection():
      """Detect keypoints in images."""
      cli = FlashCLI(
          KeypointDetector,
          KeypointDetectionData,
          default_datamodule_builder=from_biwi,
          default_arguments={
              "model.num_keypoints": 1,
              "trainer.max_epochs": 3,
          },
      )
  
      cli.trainer.save_checkpoint("keypoint_detection_model.pt")
  
imports: from typing import Any, Callable, Dict, Optional
  from flash.core.utilities.flash_cli import FlashCLI
  from flash.core.utilities.imports import _ICEDATA_AVAILABLE, requires
  from flash.image import KeypointDetectionData, KeypointDetector
label_desc: Use image node_id 2 for calling a global function with example usage: keypoint_detection() without return types