[Home](./index.md) > [@datashaper/schema](./schema.md) > [BasicInput](./schema.basicinput.md) > [input](./schema.basicinput.input.md) ## BasicInput.input property Standard step input; single source with default name "source". If undefined, the default output of the previous step will be used (if available). If no previous step is available, this will remain undefined Signature: ```typescript input?: WorkflowStepId | { source: WorkflowInput; }; ```