class Deno.ChildProcess
implements AsyncDisposable
The interface for handling a child process returned from
`Deno.Command.spawn`.
[Symbol.asyncDispose](): Promise<void>
Kills the process with given [`Deno.Signal`](../././~/Deno.Signal).
Defaults to `SIGTERM` if no signal is provided.
output(): Promise<CommandOutput>
Waits for the child to exit completely, returning all its output and
status.
ref(): void
Ensure that the status of the child process prevents the Deno process
from exiting.
unref(): void
Ensure that the status of the child process does not block the Deno
process from exiting.