code: def set_all(self, idx, v):
      self.substr[idx, :] = v
  
file_path: calamari/calamari_ocr/ocr/dataset/textprocessors/text_synchronizer.py
imports: import numpy
label_desc: Use image node_id 12 for calling the Sync obj's underlying member method code with example usage: obj.set_all(idx, v) without return types