* add usage docs for context types and metadata, improve comments * changes after review
		
			
				
	
	
	
		
			677 B
		
	
	
	
	
	
	
	
			
		
		
	
	
			677 B
		
	
	
	
	
	
	
	
* add usage docs for context types and metadata, improve comments * changes after review