class_docstr: Timeseries problem with a toy dataset and without inputs.
class_docstr_tok: ["Timeseries","problem","with","a","toy","dataset","and","without","inputs","."]
code: def has_inputs(self):
      return False
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  from tensor2tensor.data_generators import generator_utils
  from tensor2tensor.data_generators import problem
  from tensor2tensor.data_generators import text_encoder
  from tensor2tensor.data_generators import timeseries_data_generator
  from tensor2tensor.layers import modalities
  from tensor2tensor.utils import metrics
  from tensor2tensor.utils import registry
  import tensorflow.compat.v1
label_desc: Use image node_id 1 for calling the TimeseriesToyProblemNoInputs obj's underlying member method code with example usage: obj.has_inputs() and returns: False