How to use the arcgis.features.Feature function in arcgis

else:
                                            del feature['attributes'][attribute]



                        #Remove non matching fields from features to reduce payload being sent in 'edit_features' (adding new features) call
                        for feature in features:                
                            for attribute in list(feature['attributes']):
                                if attribute not in matchfieldnames:
                                    del feature['attributes'][attribute]
                                    

                        #Create ArcGIS Python API Features List
                        fset = []
                        for feature in features:
                            tempFeature = Feature(feature['geometry'], feature['attributes'])
                            fset.append(tempFeature)

                        #Convert all date values to UTC for records to add
                        for feature in fset:
                            for dateField in dateFields:
                                if feature.get_value(dateField):
                                    if isinstance(feature.get_value(dateField), int):
                                        fcTime = int(feature.get_value(dateField)/1000)
                                        try:
                                            dateValue = dt.utcfromtimestamp(fcTime)
                                        except (OSError, OverflowError):
                                            dateValue = dt(1970,1,1,0) + td(seconds=fcTime)
                                    else:
                                        dateValue = dt.strptime(feature.get_value(dateField), timestamp)
                                    try:
                                        dateValue = int(dateValue.timestamp()*1000)