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	a714c781a6
	
	
	
		
			
			website/docs: Reduce redundant usage of badges. Move badge logic to components. - Fix JSX class name warning. - Remove duplicate titles. - Flesh out `support_level` frontmatter.
		
			
				
	
	
	
		
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title
| title | 
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| Sources expression property mappings | 
The property mapping should return a value that is expected by the source. Returning None is always accepted and would simply skip the mapping for which None was returned.
Variables
- Arbitrary arguments given by the source (this is documented by the source).
- properties: A Python dictionary containing the result of the previously run property mappings, plus the initial data computed by the source.
- request: The current request. This may be- Noneif there is no contextual request. See (Django documentation)
import Objects from "../../../expressions/_objects.md";
Available Functions
import Functions from "../../../expressions/_functions.mdx";