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Update the intro

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Fabian Affolter 2015-12-15 08:22:25 +01:00
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source/getting-started/templating.markdown
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@ -9,9 +9,13 @@ sharing: true
footer: true
---
The template helper enables one to mathematically manipulate values and use variables to extract values from JSON.
The template helper enables one to mathematically manipulate values and use variables to extract values from JSON. If the entity has template support then the `value_template` key can be set in the `configuration.yaml` file.
For a complete overview, check the [Jinja2 Template documentation](http://jinja.pocoo.org/docs/dev/templates/).
```yaml
value_template: '{% raw %}{{ value.x }}{% endraw %}'
```
For a complete overview, check the [Jinja2 documentation](http://jinja.pocoo.org/docs/dev/templates/).
### {% linkable_title Accessing variables %}