[Home](./index.md) > [kibana-plugin-plugins-expressions-public](./kibana-plugin-plugins-expressions-public.md) > [ExpressionFunctionParameter](./kibana-plugin-plugins-expressions-public.expressionfunctionparameter.md) > [help](./kibana-plugin-plugins-expressions-public.expressionfunctionparameter.help.md) ## ExpressionFunctionParameter.help property Signature: ```typescript help: string; ```