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%julia

function printsum(a)
    # summary generates a summary of an object
    println(summary(a), ": ", repr(a))
end

a1 = [1,2,3]
printsum(a1)
3-element Array{Int64,1}: [1,2,3]
%julia

a1 = [7, 5, 7]
printsum(a1)
3-element Array{Int64,1}: [7,5,7]