code: def test_invalid_k():
      G = nx.Graph()
      pytest.raises(ValueError, list, k_edge_augmentation(G, k=-1))
      pytest.raises(ValueError, list, k_edge_augmentation(G, k=0))
  
imports: import itertools
  import random
  import pytest
  import networkx
  from networkx.algorithms.connectivity import k_edge_augmentation
  from networkx.algorithms.connectivity.edge_augmentation import _unpack_available_edges, collapse, complement_edges, is_k_edge_connected, is_locally_k_edge_connected
  from networkx.utils import pairwise
label_desc: Use image node_id 12 for calling a global function with example usage: test_invalid_k() without return types