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import json
from ibm_watson import NaturalLanguageUnderstandingV1
from ibm_watson.natural_language_understanding_v1 import Features, EntitiesOptions, KeywordsOptions
# from ibm_cloud_sdk_core.authenticators import IAMAuthenticator
# Authentication via IAM
# authenticator = IAMAuthenticator('your_api_key')
# service = NaturalLanguageUnderstandingV1(
# version='2018-03-16',
# authenticator=authenticator)
# service.set_service_url('https://gateway.watsonplatform.net/natural-language-understanding/api')
# Authentication via external config like VCAP_SERVICES
service = NaturalLanguageUnderstandingV1(
version='2018-03-16')
service.set_service_url('https://api.us-south.natural-language-understanding.watson.cloud.ibm.com')
response = service.analyze(
text='Bruce Banner is the Hulk and Bruce Wayne is BATMAN! '
'Superman fears not Banner, but Wayne.',
features=Features(entities=EntitiesOptions(),
keywords=KeywordsOptions())).get_result()
print(json.dumps(response, indent=2))
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