class_docstr: The Flickr dataset from the [Zeng at al. (2019)](https://arxiv.org/abs/1907.04931) paper,
  containing descriptions and common properties of images.
  
  **Arguments**
  
  - `normalize_x`: if True, normalize the features.
  - `dtype`: numpy dtype of graph data.
code: def __init__(self, normalize_x=False, dtype=np.float32, **kwargs):
      self.dtype = dtype
      self.normalize_x = normalize_x
      super().__init__(**kwargs)
  
file_path: spektral/spektral/datasets/flickr.py
imports: import json
  import os
  import os.path
  import numpy
  import scipy.sparse
  from spektral.data import Dataset, Graph
  from spektral.datasets.citation import _preprocess_features
  from spektral.datasets.dblp import _download_url
  from spektral.utils import label_to_one_hot
label_desc: Use image node_id 1 to create a new Flickr object from inherited base classes: Dataset with example: obj = Flickr(normalize_x, dtype)