ol/format/Feature~FeatureFormat
import FeatureFormat from 'ol/format/Feature.js';
      
    
    Abstract base class; normally only used for creating subclasses and not
instantiated in apps.
Base class for feature formats.
FeatureFormat subclasses provide the ability to decode and encode
Feature objects from a variety of commonly used geospatial
file formats.  See the documentation for each format for more details.