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*forward* facilitates proxying DNS messages to upstream resolvers.

*template* allows for dynamic responses based on the incoming query.

*auto* enables serving zone data from an RFC 1035-style master file, which is automatically picked up from disk.

*erratic* a plugin useful for testing client behavior.

*https* configures DNS-over-HTTPS (DoH) server options.

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The dur attribute indicates the simple duration of an animation.

A dynamically-sized view into a contiguous sequence, `[T]`.

Functions are one of the fundamental building blocks in JavaScript. A function in JavaScript is similar to a procedure—a set of statements that performs a task or calculates a value, but for a procedure to qualify as a function, it should take some input and return an output where there is some obvious relationship between the input and the output. To use a function, you must define it somewhere in the scope from which you wish to call it.