8 lines
		
	
	
		
			242 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
		
		
			
		
	
	
			8 lines
		
	
	
		
			242 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
|   | class Hash | ||
|  |   def assert_valid_keys(*valid_keys) | ||
|  |     unknown_keys = keys - valid_keys | ||
|  |     return if unknown_keys.empty? | ||
|  |     raise Hbc::CaskError, %Q{Unknown keys: #{unknown_keys.inspect}. Running "#{UPDATE_CMD}" will likely fix it.} | ||
|  |   end | ||
|  | end |