[NTG-context] typebuffer different from typefile

Why is there a difference in syntax between typing buffers and typing files? For files enclosure in {} for buffers in [], for files optional parameters, for buffers not. Is it possible to make the syntax of these two the same, because their usage parallels each other? Example code: \startbuffer[test] content of buffer \stopbuffer \starttext \typebuffer[test] \typefile[style=\ttx]{test.txt} \stoptext Hans van der Meer