code: def read_depth_to_ram(self):
      return self.captured_depth.read_depth_to_ram()
  
imports: import numpy
  from cameras.pinhole_camera import resize_pinhole_camera
  from cameras import contents
  from geometry import pcd_projector
  from utils import ray_utils
label_desc: Use image node_id 2 for calling the DepthPinholeCapture obj's underlying member method code with example usage: obj.read_depth_to_ram() and returns: self