Method code for $list.getkey()

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arg l, key;
var i, x;

if (!(x = find i in [1 .. l.length()] where (l[i][1] == key)))
    throw(~keynf, "Key not found.");
return l[x][2];

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["// Created 26-Mar-1995 as a part of ColdCore, see: @help Credit"]