Function STRUCTKEYLIST
			
				Extracts keys from a struct.
			
		
		
		
		Example
structkeylist(struct structure,[string delimiter]):string
Arguments
				The arguments for this function are set. You can not use other arguments except the following ones.
				
			
		
		
			| Name | Type | Required | Description | 
|---|---|---|---|
| structure | struct | Yes | Structure from which to extract a list of keys. | 
| delimiter | string | No | Character that separates keys in list. Default: comma. | 
