(ArcGIS API for Python) Publish a feature layer from server to AGO idea

Sample.py

# Sample of how to copy a feature layer from a local ArcGIS server and publish it to AGOL.
import arcgis
from arcgis import features
from arcgis import GIS
from arcgis.gis import Item
import json

gis = GIS(username="username", password= "password")

#Turn Feature Layer to a Feature Set
feature_layer = features.FeatureLayer(url="https://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer/0")
featureSet = feature_layer.query(where='1=1', out_fields= '*')

#Turn FeatureSet to JSON
FeatureSetAsjson = featureSet.to_json

#Write the JSON to a file on disk
with open(r'path to local\featureCollection.json', 'w') as f:
    json.dump(FeatureSetAsjson, f)

#Add the file to AGO and publish 
fcItem = gis.content.add({'type': 'Feature Collection', 'title': 'MyFeautrelayerFromFC'}, data= r'path to local\featureCollection.json')
fcItem.publish()