code: def get_area_def(area_name):
      
      try:
          from pyresample import parse_area_file
      except ImportError:
          from pyresample.utils import parse_area_file
      return parse_area_file(get_area_file(), area_name)[0]
docs: Get the definition of *area_name* from file.
  
      The file is defined to use is to be placed in the $PPP_CONFIG_DIR
      directory, and its name is defined in satpy's configuration file.