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replace

container.Mutable_Tree_Map.replace

(k KEY, v VAL)
 => 
option VAL
add the mapping k -> v as a new entry to this map

returns the value that k previously mapped to, or nil if
k was not yet contained in this map
0.099dev (GIT hash a68bce9af280552faedee34cd5433dc10b6454de)
last changed: 2026-10-14