kibana/docs/development/plugins/expressions/public/kibana-plugin-plugins-expressions-public.expressionsservicestart.getfunction.md

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ExpressionsServiceStart.getFunction property

Get a registered ExpressionFunction by its name, which was registered using the registerFunction method. The returned ExpressionFunction instance is an internal representation of the function in Expressions service - do not mutate that object.

Signature:

getFunction: (name: string) => ReturnType<Executor['getFunction']>;