function

Replace

Replace replaces the callback's own logical value.

Arguments

Argument	Type	Description
`value`	`Value[T]`	The value value.

The declared result.

Change[T]

func Replace[T any](value Value[T]) Change[T]

Value
Value carries an optional logical value. Its zero value is empty. For raw input, empty means omitted and Present(store.Null()) means explicit null. For typed scalars, empty is the portable empty state, not a durable absence encoding. T must follow its own ownership contract; this carrier does not deep-clone arbitrary mutable application values.
Change
Change is an explicit keep-or-replace result. Its zero value means keep. Replacing with Empty clears the callback's own logical value; it does not create an external patch command or durable scalar removal representation.