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0cd321112f
* use rdflib to extract signposts from jsonld * use rdflib to extract signposts from jsonld * linting * unit tests for jsonld middleware * update readme * update flake pipeline --------- Co-authored-by: Daniel Bauer <daniel.bauer@senckenberg.de>
221 lines
7.5 KiB
Python
221 lines
7.5 KiB
Python
import json
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from django.http import HttpRequest, HttpResponse
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from django_signposting.middleware import JsonLdSignpostingParserMiddleware
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from signposting import Signpost, LinkRel
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def jsonld_test_runner(jsonld, expected_signposts):
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response = HttpResponse(f"""
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<html><head>
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<script type="application/ld+json">{json.dumps(jsonld)}</script>
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</head>
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<body></body>
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</html>
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""")
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response.status_code = 200
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middleware = JsonLdSignpostingParserMiddleware(lambda request: response)
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response = middleware(HttpRequest())
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for expected_signpost in expected_signposts:
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assert expected_signpost in response._signposts
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assert len(expected_signposts) == len(response._signposts)
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def test_jsonld_signposting_basic():
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jsonld_test_runner(
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{
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"@context": "http://schema.org",
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"@type": "WebPage",
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"author": {"url": "http://example.com/author"},
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"url": "http://example.com/url",
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"license": {"identifier": "http://example.com/license"},
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"hasPart": [
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{
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"url": "http://example.com/image1.jpg",
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},
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{
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"url": "http://example.com/image2.jpg",
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},
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],
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"sameAs": [
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{
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"url": "http://example.com/metadata.json",
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},
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{
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"url": "http://example.com/metadata.xml",
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},
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],
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},
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[
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Signpost(LinkRel.type, "http://schema.org/WebPage"),
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Signpost(LinkRel.author, "http://example.com/author"),
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Signpost(LinkRel.cite_as, "http://example.com/url"),
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Signpost(LinkRel.license, "http://example.com/license"),
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Signpost(LinkRel.item, "http://example.com/image1.jpg"),
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Signpost(LinkRel.item, "http://example.com/image2.jpg"),
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Signpost(LinkRel.describedby, "http://example.com/metadata.json"),
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Signpost(LinkRel.describedby, "http://example.com/metadata.xml"),
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],
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)
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def test_jsonld_empty_signposting():
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jsonld_test_runner({}, [])
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def test_jsonld_signposting_media_types():
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jsonld_test_runner(
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{
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"@context": "http://schema.org",
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"@type": "WebPage",
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"author": {"url": "http://example.com/author"},
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"url": "http://example.com/url",
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"license": {"identifier": "http://example.com/license"},
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"hasPart": [
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{
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"url": "http://example.com/image1.jpg",
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"encodingFormat": "image/jpeg",
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},
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{"url": "http://example.com/image2.jpg", "encodingFormat": "image/png"},
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],
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"sameAs": [
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{
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"url": "http://example.com/metadata.json",
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"encodingFormat": "application/json",
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},
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{
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"url": "http://example.com/metadata.xml",
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"encodingFormat": "application/xml",
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},
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],
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},
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[
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Signpost(LinkRel.type, "http://schema.org/WebPage"),
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Signpost(LinkRel.author, "http://example.com/author"),
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Signpost(LinkRel.cite_as, "http://example.com/url"),
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Signpost(LinkRel.license, "http://example.com/license"),
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Signpost(LinkRel.item, "http://example.com/image1.jpg", "image/jpeg"),
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Signpost(LinkRel.item, "http://example.com/image2.jpg", "image/png"),
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Signpost(
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LinkRel.describedby,
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"http://example.com/metadata.json",
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"application/json",
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),
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Signpost(
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LinkRel.describedby,
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"http://example.com/metadata.xml",
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"application/xml",
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),
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],
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)
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def test_jsonld_signposting_property_precedence():
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jsonld_test_runner(
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{
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"@context": "http://schema.org",
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"@type": "WebPage",
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"author": {
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"identifier": "http://example.com/author-ident",
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"url": "http://example.com/author-url",
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},
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"hasPart": [
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{
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"identifier": "http://example.com/image1-identifier.jpg",
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"url": "http://example.com/image1-url.jpg",
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"contentUrl": "http://example.com/image1-content.jpg",
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},
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{
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"identifier": "http://example.com/image2-identifier.jpg",
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"url": "http://example.com/image2-url.jpg",
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},
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],
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},
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[
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Signpost(LinkRel.type, "http://schema.org/WebPage"),
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Signpost(LinkRel.author, "http://example.com/author-url"),
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Signpost(LinkRel.item, "http://example.com/image1-content.jpg"),
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Signpost(LinkRel.item, "http://example.com/image2-url.jpg"),
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],
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)
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def test_jsonld_signposting_ids():
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jsonld_test_runner(
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{
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"@context": "http://schema.org",
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"@graph": [
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{
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"@type": "WebPage",
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"author": {"@id": "http://example.com/author"},
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"url": "http://example.com/url",
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"license": {"@id": "http://example.com/license"},
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"hasPart": [
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{
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"@id": "http://example.com/image1.jpg",
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},
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],
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"sameAs": [
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{
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"@id": "http://example.com/metadata.json",
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},
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],
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},
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{"@id": "http://example.com/author", "@type": "Person"},
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{"@id": "http://example.com/license"},
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{
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"@id": "http://example.com/image1.jpg",
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"encodingFormat": "image/jpeg",
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},
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{"@id": "http://example.com/metadata.json"},
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],
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},
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[
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Signpost(LinkRel.type, "http://schema.org/WebPage"),
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Signpost(LinkRel.author, "http://example.com/author"),
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Signpost(LinkRel.cite_as, "http://example.com/url"),
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Signpost(LinkRel.license, "http://example.com/license"),
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Signpost(LinkRel.item, "http://example.com/image1.jpg", "image/jpeg"),
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Signpost(LinkRel.describedby, "http://example.com/metadata.json"),
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],
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)
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def test_jsonld_signposting_ids_with_url():
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jsonld_test_runner(
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{
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"@context": "http://schema.org",
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"@graph": [
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{
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"@type": "WebPage",
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"author": {"@id": "http://example.com/author"},
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},
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{
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"@id": "http://example.com/author",
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"url": "http://example.com/realAuthorUrl",
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},
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],
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},
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[
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Signpost(LinkRel.type, "http://schema.org/WebPage"),
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Signpost(LinkRel.author, "http://example.com/realAuthorUrl"),
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],
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)
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def test_jsonld_signposting_multiple_types():
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jsonld_test_runner(
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{
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"@context": "http://schema.org",
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"@type": "Dataset",
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"author": "http://example.com/author",
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},
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[
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Signpost(LinkRel.type, "http://schema.org/Dataset"),
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Signpost(LinkRel.author, "http://example.com/author"),
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],
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)
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