code: def load_karate_graph():
      """Load data from data/graph_karate.
  
      Returns
      -------
      graph: prepare_graph_data.Graph
          Graph containing nodes, edges, and labels from the karate dataset.
      """
      return Graph(KARATE_PATH, KARATE_LABELS_PATH)
  
imports: import csv
  import json
  import os
  import zipfile
  import numpy
  import pandas
  import geomstats.backend
  from geomstats.datasets._base import RemoteFileMetadata, _fetch_remote
  from geomstats.datasets.prepare_graph_data import Graph
  from geomstats.geometry.hypersphere import Hypersphere
  from geomstats.geometry.skew_symmetric_matrices import SkewSymmetricMatrices
  from geomstats.geometry.special_orthogonal import SpecialOrthogonal
label_desc: Use image node_id 3 for calling a global function with example usage: load_karate_graph() and returns: Graph