[Home](./index.md) > [kibana-plugin-plugins-expressions-server](./kibana-plugin-plugins-expressions-server.md) > [ExpressionFunctionDefinitions](./kibana-plugin-plugins-expressions-server.expressionfunctiondefinitions.md) > [var\_set](./kibana-plugin-plugins-expressions-server.expressionfunctiondefinitions.var_set.md) ## ExpressionFunctionDefinitions.var\_set property Signature: ```typescript var_set: ExpressionFunctionVarSet; ```