class_docstr: _KeyValueIOTensor
class_docstr_tok: ["_KeyValueIOTensor"]
code: def __iter__(self):
      with tf.name_scope("KeyValueIOTensorIter"):
          resource = self._iterable_init()
          while True:
              value = self._iterable_next(resource)
              if tf.shape(value)[0].numpy() == 0:
                  return
              yield value[0]
  
imports: import tensorflow
label_desc: Use image node_id 2 for calling the _KeyValueIOTensor obj's underlying member method code with example usage: obj.__iter__() without return types