Returns a specification to start this module under a supervisor.

arg is passed as the argument to Task.start_link/1 in the :start field of the spec.

For more information, see the Supervisor module, the Supervisor.child_spec/2 function and the Supervisor.child_spec/0 type.

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@spec init_opts(opts :: Keyword.t()) :: Keyword.t()

Callback for initializing options upon strategy startup