def save_hdf5(self, filename, rm_nodes=None):
ph5.network_to_pandas_hdf5(self, filename, rm_nodes)<EOL>
Save network data to a Pandas HDF5 file.

Only the nodes and edges of the actual network are saved,
points-of-interest and data attached to nodes are not saved.

Parameters
----------
filename : str
rm_nodes : array_like
    A list, array, Index, or Series of node IDs that should *not*
    be saved as part of the Network.