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Yi Lu
I reply the second question first. I mean a macro that removes brackets. This is discussed [here](https://groups.google.com/forum/#!topic/julia-users/ErvMDDvXqYM).
For the first one, I didn't import anything. ``` julia julia> help(take) INFO: Loading help data... take (generic function with 1 method) julia> methods(take) # 1 method for generic function...