function
boot.janet on line 1674 , column 1
(merge-into tab & colls )
Merges multiple tables/structs into table `tab` . If a key appears
in more than one collection in `colls` , then later values replace
any previous ones. Returns `tab` .
(let [tbl @{:a 1 }]
(merge-into tbl {:b 2 })
tbl )
# => @{:a 1 :b 2}
# real-world example: https://git.sr.ht/~subsetpark/bagatto/tree/19aea03fe23fe5486890912df7dc4a936ce617a3/item/main.janet#L23