Scenic.PubSub.get-exclamation-mark

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Specs

get!(source_id :: atom()) :: any()

Retrieve the cached data value for a named data source.

Raises an error if the value is not registered

This data is pulled from an :ets table and does not put load on the data source itself.

Parameters

  • source_id an atom that is registered to a data source.

Return Value

  data

If the data source is either not registered, or has not yet published any data, get returns

  nil