code: def test_from_biadjacency_multigraph(self):
      M = sparse.csc_matrix([[1, 2], [0, 3]])
      B = bipartite.from_biadjacency_matrix(
          M, create_using=nx.MultiGraph()
      )
      assert edges_equal(
          B.edges(), [(0, 2), (0, 3), (0, 3), (1, 3), (1, 3), (1, 3)]
      )
  
file_path: networkx/networkx/algorithms/bipartite/tests/test_matrix.py
imports: import pytest
  import networkx
  from networkx.algorithms import bipartite
  from networkx.utils import edges_equal
label_desc: Use image node_id 11 for calling the TestBiadjacencyMatrix obj's underlying member method code with example usage: obj.test_from_biadjacency_multigraph() without return types