> For the complete documentation index, see [llms.txt](https://awsnotes.dendron.so/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://awsnotes.dendron.so/internet-of-things-iot/aws-iot-events/topics/expressions.md).

# Expressions

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This page was generated from content adapted from the [AWS Developer Guide](https://github.com/awsdocs/aws-iot-events-developer-guide.git)
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## Usage

* **Important**\
  Your expressions must reference a integer, decimal, string, or Boolean value.