text: #!/usr/bin/env python3
  # encoding: utf-8
  
  """
  A module for generating statmech adapters.
  """
  
  from typing import Type
  
  from arc.reaction import ARCReaction
  from arc.species.species import ARCSpecies
  from arc.statmech.adapter import StatmechAdapter
  
  
  _registered_statmech_adapters = {}
  
  
  def register_statmech_adapter(statmech_adapter_label: str,
                                statmech_adapter_class: Type[StatmechAdapter],
                                ) -> None:
      """
      A register for statmech adapters.
  
      Args:
          statmech_adapter_label (StatmechEnum): A string representation for a statmech adapter.
          statmech_adapter_class (typing.Type[StatmechAdapter]): The statmech adapter class (a child of StatmechAdapter).
  
      Raises:
          TypeError: If statmech_class is not a StatmechAdapter instance.
      """
      if not issubclass(statmech_adapter_class, StatmechAdapter):
          raise TypeError(f'Statmech adapter class {statmech_adapter_class} is not a StatmechAdapter type.')
      _registered_statmech_adapters[statmech_adapter_label] = statmech_adapter_class
  
  
  def statmech_factory(statmech_adapter_label: str,  # add everything that goes into the adapter class init
                       output_directory: str,
                       output_dict: dict,
                       use_bac: bool,
                       sp_level: str = '',
                       freq_scale_factor: float = 1.0,
                       species: Type[ARCSpecies] = None,
                       reaction: Type[ARCReaction] = None,
                       species_dict: dict = None,
                       T_min: tuple = None,
                       T_max: tuple = None,
                       T_count: int = 50,
                       ) -> Type[StatmechAdapter]:
      """
      A factory generating a statmech adapter corresponding to ``statmech_adapter``.
  
      Args:
          statmech_adapter_label (StatmechEnum): A string representation for a statmech adapter.
          output_directory (str): The path to the ARC project output directory.
          output_dict (dict): Keys are labels, values are output file paths.
                              See Scheduler for a description of this dictionary.
          use_bac (bool): Whether or not to use bond additivity corrections (BACs) for thermo calculations.
          sp_level (str, optional): The level of theory used for the single point energy calculation
                                    (could be a composite method), used for determining energy corrections.
          freq_scale_factor (float, optional): The harmonic frequencies scaling factor.
          species (ARCSpecies, optional): The species object.
          reaction (list, optional): The reaction object.
          species_dict (dict, optional): Keys are labels, values are ARCSpecies objects.
          T_min (tuple, optional): The minimum temperature for kinetics computations, e.g., (500, 'K').
          T_max (tuple, optional): The maximum temperature for kinetics computations, e.g., (3000, 'K').
          T_count (int, optional): The number of temperature points between t_min and t_max for kinetics computations.
  
      Returns:
          StatmechAdapter: The requested StatmechAdapter instance, initialized with the respective arguments,
      """
      statmech_adapter_class = _registered_statmech_adapters[statmech_adapter_label](output_directory=output_directory,
                                                                                     output_dict=output_dict,
                                                                                     use_bac=use_bac,
                                                                                     sp_level=sp_level,
                                                                                     freq_scale_factor=freq_scale_factor,
                                                                                     species=species,
                                                                                     reaction=reaction,
                                                                                     species_dict=species_dict,
                                                                                     T_min=T_min,
                                                                                     T_max=T_max,
                                                                                     T_count=T_count,
                                                                                     )
      return statmech_adapter_class
  