text: __all__ = ['Methane', 'Ethane', 'Propane', 'Hexane', 'Alkane', 'AlkylSilane',
             'AlkaneMonolayer', 'PMPCLayer']
  
  from mbuild.examples.methane.methane import Methane
  from mbuild.examples.ethane.ethane import Ethane
  from mbuild.examples.alkane.alkane import Alkane
  from mbuild.examples.coarse_graining.cg_hexane import Propane, Hexane
  
  from mbuild.examples.alkane_monolayer.alkane_monolayer import AlkaneMonolayer
  from mbuild.examples.alkane_monolayer.alkylsilane import AlkylSilane
  from mbuild.examples.pmpc.pmpc_brush_layer import PMPCLayer
  