old_contents: import os
  import glob
  from pkg_resources import resource_filename
  
  from foyer import Forcefield
  
  
  def get_ff_path():
      return [resource_filename('foyer', 'forcefields')]
  
  
  def get_forcefield_paths(forcefield_name=None):
      for dir_path in get_ff_path():
          file_pattern = os.path.join(dir_path, 'xml/*.xml')
          file_paths = [file_path for file_path in glob.glob(file_pattern)]
      return file_paths
  
  
  def get_forcefield(name=None):
      if name is None:
          raise ValueError('Need a force field name')
      file_paths = get_forcefield_paths()
      try:
          ff_path = next(val for val in file_paths if name in val)
      except StopIteration:
          raise ValueError('Could not find force field with name {}'
                  ' in path {}'.format(name, get_ff_path()))
      return Forcefield(ff_path)
  
  load_OPLSAA = get_forcefield(name='oplsaa')
  load_TRAPPE_UA = get_forcefield(name='trappe-ua')
  
new_contents: import os
  import glob
  from pkg_resources import resource_filename
  
  from foyer import Forcefield
  
  
  def get_ff_path():
      return [resource_filename('foyer', 'forcefields')]
  
  
  def get_forcefield_paths(forcefield_name=None):
      for dir_path in get_ff_path():
          file_pattern = os.path.join(dir_path, 'xml/*.xml')
          file_paths = [file_path for file_path in glob.glob(file_pattern)]
      return file_paths
  
  
  def get_forcefield(name=None):
      if name is None:
          raise ValueError('Need a force field name')
      file_paths = get_forcefield_paths()
      try:
          ff_path = next(val for val in file_paths if name in val)
      except StopIteration:
          raise ValueError('Could not find force field with name {}'
                  ' in path {}'.format(name, get_ff_path()))
      return Forcefield(ff_path)
  
  
  def load_OPLSAA():
      return get_forcefield(name='oplsaa')
  
  
  def load_TRAPPE_UA():
      return get_forcefield(name='trappe-ua')
  
  
  load_OPLSAA = load_OPLSAA
  load_TRAPPE_UA = load_TRAPPE_UA
  
subject: Make discrete functions for each force field