How to obtain document fields during query rewrite

Elastic Stack Elasticsearch
1

I'd like to create a plugin with a custom Query that looks something like
this:

{ my_query: { id: "52952683291b6d43120de872" } }

And in the rewrite method, I'd like to use values from that document. For
example, if the document looks like:

{ _id: "52952683291b6d43120de872", foo: 23, bar: 103 }

Then I may want to rewrite my_query as:

{ numeric_range: { foobar: { gte: 23, lte: 103 } } }

In my rewrite method implementation, how do I obtain the reference document?

Thanks,
Ricky

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