code: def _roty(t):
      c = np.cos(t)
      s = np.sin(t)
      return np.array([[c, 0, s], [0, 1, 0], [-s, 0, c]])
  
imports: import csv
  import logging
  import struct
  import os
  import numpy
  import eta.core.utils
  import eta.core.web
  import fiftyone
  import fiftyone.core.labels
  import fiftyone.core.metadata
  import fiftyone.core.storage
  import fiftyone.core.utils
  import fiftyone.utils.data
label_desc: Use image node_id 12 for calling a global function with example usage: _roty(t) and returns: np