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Getting started with EUnit (Part 1)
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| -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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