[Home](./index.md) > [kibana-plugin-plugins-expressions-public](./kibana-plugin-plugins-expressions-public.md) > [Executor](./kibana-plugin-plugins-expressions-public.executor.md) > [inject](./kibana-plugin-plugins-expressions-public.executor.inject.md) ## Executor.inject() method Signature: ```typescript inject(ast: ExpressionAstExpression, references: SavedObjectReference[]): ExpressionAstExpression; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | ast | ExpressionAstExpression | | | references | SavedObjectReference[] | | Returns: `ExpressionAstExpression`