[Home](./index.md) > [kibana-plugin-plugins-expressions-server](./kibana-plugin-plugins-expressions-server.md) > [ExpressionAstFunctionBuilder](./kibana-plugin-plugins-expressions-server.expressionastfunctionbuilder.md) > [arguments](./kibana-plugin-plugins-expressions-server.expressionastfunctionbuilder.arguments.md) ## ExpressionAstFunctionBuilder.arguments property Object of all args currently added to the function. This is structured similarly to `ExpressionAstFunction['arguments']`, however any subexpressions are returned as expression builder instances instead of expression ASTs. Signature: ```typescript arguments: FunctionBuilderArguments; ```