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renatorozas/kv_db.erl

Last active March 15, 2016 01:44
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Getting started with EUnit (Part 1)
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kv_db.erl
-module(kv_db).
-type db() :: [].
-type results() :: nonempty_list({Key::atom(), Value::term()}).
-type err() :: {‘error’, string()}.
-export_type([db/0, results/0, err/0]).
% -spec new() -> db().
% -spec put(Key::atom(), Value::term(), Db::db()) -> results().
% -spec get(Key::atom(), Db::db()) -> term() | err().
% -spec delete(Key::atom(), Db::db()) -> (results() | nil()) | err().
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