code: def test_relabeling(self, edge):
      G = nx.Graph([edge])
      assert g6.to_graph6_bytes(G) == b">>graph6<<A_\n"
  
imports: from io import BytesIO
  import pytest
  import networkx
  import networkx.readwrite.graph6
  from networkx.utils import edges_equal, nodes_equal
label_desc: Use image node_id 10 for calling the TestToGraph6Bytes obj's underlying member method code with example usage: obj.test_relabeling(edge) without return types