body-till

[amitu]

-- fastn.get.description:
$body-till$: EOB

-- import: fastn/processors as pr

-- string http-location:
$processor$: pr.test-data

-- ds.button: $http-location

EOB

Or even better:

-- fastn.get.description:

<EOB
-- import: fastn/processors as pr

-- string http-location:
$processor$: pr.test-data

-- ds.button: $http-location

EOB>

-- fastn.get.description:
code: <CODE

-- import: fastn/processors as pr

-- string http-location:
$processor$: pr.test-data

-- ds.button: $http-location

CODE>

How we parse content inside <CODE till CODE> will depend on type of code in fastn.get.description.