[Home](./index.md) > [kibana-plugin-plugins-expressions-public](./kibana-plugin-plugins-expressions-public.md) > [IExpressionLoaderParams](./kibana-plugin-plugins-expressions-public.iexpressionloaderparams.md) > [customFunctions](./kibana-plugin-plugins-expressions-public.iexpressionloaderparams.customfunctions.md) ## IExpressionLoaderParams.customFunctions property Signature: ```typescript customFunctions?: []; ```