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Define an empty map

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erlang
Map = dict:new(),
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erlang
Map = orddict:new(),
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erlang
Map = gb_trees:empty(),
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erlang
Map = ets:new(the_map_name, [set, private, {keypos, 1}]),
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fsharp
let map = Map.empty
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fsharp
let map = new Generic.Dictionary<string, string>()
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fsharp
let map = new Hashtable()

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