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You can use the repository to identify the data formats & data elements expected for each document.
You can
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test that your JSONL is valid by doing a test load in your own GCP project https://github.com/boxalino/data-integration-doc-schema#are-you-an-integrator
You can test that your JSONL is valid by doing a test with the generator https://github.com/boxalino/data-integration-doc-schema/blob/master/schema/generator.html
For certain headless CMS, Boxalino has designed a Transformer service Transformer
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