docstr: Test for reading many graphs from a file into a list.
docstr_tok: ["Test","for","reading","many","graphs","from","a","file","into","a","list","."]
code: def test_read_many_graph6(self):
      """Test for reading many graphs from a file into a list."""
      data = b"DF{\nD`{\nDqK\nD~{\n"
      fh = BytesIO(data)
      glist = nx.read_graph6(fh)
      assert len(glist) == 4
      for G in glist:
          assert sorted(G) == list(range(5))
  
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 1 for calling the TestReadGraph6 obj's underlying member method code with example usage: obj.test_read_many_graph6() without return types