text: r"""
  
  **openpnm.io**
  
  ----
  
  This module contains functionality for importing and exporting data between
  OpenPNM and other formats.
  
  Note that saving and loading OpenPNM data in its own format is done through
  the Workspace and Project objects.  Saving data through these classes losses
  lots of vital information about the simulation, such as pore scale-models and
  parameters.
  
  ----
  
  **Available Import and Export Options**
  
  +----------+------------------------------------------------------------------+
  | Format   | Description                                                      |
  +==========+==================================================================+
  | Dict     | Generates hierarchical ``dicts`` with a high degree of control   |
  |          | over the structure                                               |
  +----------+------------------------------------------------------------------+
  | Pandas   | Combines all data arrays into a Pandas DataFrame object          |
  +----------+------------------------------------------------------------------+
  | CSV      | Reads and writes CSV (comma-separated-value files) containing    |
  |          | pore and throat data                                             |
  +----------+------------------------------------------------------------------+
  | HDF5     | The HDF5 (Hierarchical Data Format) file is good for high-       |
  |          | peformance, long term data storage                               |
  +----------+------------------------------------------------------------------+
  | XDMF     | The eXtensible Data Model Format combines XML descriptors with   |
  |          | HDF5 data storage                                                |
  +----------+------------------------------------------------------------------+
  | VTK      | The Visualization Toolkit (VTK) format defined by Kitware and    |
  |          | used by Paraview                                                 |
  +----------+------------------------------------------------------------------+
  | NetworkX | NetworkX is a common tool for dealing with network structures    |
  +----------+------------------------------------------------------------------+
  | MAT      | MAT files are a format used by Matlab                            |
  +----------+------------------------------------------------------------------+
  | iMorph   | iMorph is a graphical interface program that provides some image |
  |          | analysis tools for porous media                                  |
  +----------+------------------------------------------------------------------+
  | MARock   | 3DMA-Rock is a network extraction algorithm                      |
  +----------+------------------------------------------------------------------+
  | Statoil  | The StatOil format is used by the Maximal Ball network extraction|
  |          | code of the Imperial College London group                        |
  +----------+------------------------------------------------------------------+
  
  Of the above, the last three only support *reading* from files and there are
  no plans to implement writing such files.
  
  """
  from .GenericIO import GenericIO
  from .Dict import Dict
  from .VTK import VTK
  from .CSV import CSV
  from .NetworkX import NetworkX
  from .MAT import MAT
  from .iMorph import iMorph
  from .MARock import MARock
  from .Statoil import Statoil
  from .Pandas import Pandas
  from .HDF5 import HDF5
  from .XDMF import XDMF
  