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Linked to this other query, as well as this one.
JSMN(JSON parser/tokenizer) - yes,zserge(Serge Zaitsev) said that they would follow RFC-8259 as the standard for their JSON parsing.
source of information
Which are the JSON parsers supported by RFC 8259 standards?
Unable to cleanup old datafusion cluster from launchpad- Please help
How can I limit my search to a particular entity type?
How Can i add People Authority Data on my DataFusion Launch pad Instance
Provide information on the limits of the Data Fusion API