import json

print('Loading function')

def lambda_handler(event, context):

#print("Received event: " + json.dumps(event, indent=2))
print("value1 = " + event['key1'])
print("value2 = " + event['key2'])
print("value3 = " + event['key3'])
return event['key1']  # Echo back the first key value
#raise Exception('Something went wrong')