> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ntop.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Await

## About this Block

**What it does:** The **Await** block is executed once the *Wait For* input is built and will produce the object in the *Return* input as the output. This way, the **Await** block runs blocks one after the other in a serial order.

**Commons uses:**

* The **Await** block combined with the [Run Command](/block-documentation/blocks/beta/utilities/run-command.html) block runs commands after input completion.

**Tips:**

* The [How to use Run Command block](https://support.ntop.com/hc/en-us/articles/23766024928787) support article has an example of using multiple Await blocks to execute an nTop to Fluent workflow in a serial order.

## Example File

The image below shows an example of using the Await block to wait to complete the **Export Mesh** block before running the Run Command block with the Python script.
![Await](https://storage.googleapis.com/files-learn/static/ReleaseImages/4.18/Await.png)

Download Example: [Await Example](https://storage.googleapis.com/files-learn/static/ExtendedBlockDocs/run_command_await.ntop)

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The Await block will execute once the 'Wait For' input is built, and will produce the object in the 'Return' input as the output. This way the Await block can be used to force blocks to run one after the other in serial order.

### Inputs

| Name     | Type                                             | Description                                                             |
| -------- | ------------------------------------------------ | ----------------------------------------------------------------------- |
| Wait for | [Any](../../../../block-documentation/types/any) | The data that is required to be available prior to executing the block. |
| Return   | [Any](../../../../block-documentation/types/any) | The value to be returned when the 'Wait For' input has executed.        |

### Outputs

| Type                                             |
| ------------------------------------------------ |
| [Any](../../../../block-documentation/types/any) |