text: from molsysmt._private_tools.exceptions import *
  
  def from_mdtraj_Topology(item, molecular_system=None, atom_indices='all', frame_indices='all'):
  
      raise NotImplementedError()
  
  def to_mdtraj_Topology(item, molecular_system=None, atom_indices='all', frame_indices='all'):
  
      from molsysmt.native.io.topology.classes import to_mdtraj_Topology as molsysmt_Topology_to_mdtraj_Topology
  
      tmp_item = item.topology
      if molecular_system is not None:
          tmp_molecular_system = molecular_system.combine_with_items(tmp_item)
      else:
          tmp_molecular_system = None
      tmp_item, tmp_molecular_system = molsysmt_Topology_to_mdtraj_Topology(tmp_item, tmp_molecular_system, atom_indices=atom_indices, frame_indices=frame_indices)
  
      return tmp_item, tmp_molecular_system
  
  
  
  
  