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 @callback init(args :: term()) ::
            {:ok, state}
            | {:ok, state, timeout() | :hibernate | {:continue, term()}}
            | :ignore
            | {:stop, reason :: any()}
          when state: any()

  @callback init(args :: term) ::
    {:ok, db :: ICouch.DB.t, state} |
    {:ok, db :: ICouch.DB.t, opts :: [option], state} |
    {:ok, db :: ICouch.DB.t, opts :: [option], state, timeout | :hibernate} |
    :ignore |
{:stop, reason :: any} when state: term

** (FunctionClauseError) no function clause matching in ICouch.DB.server_endpoint/2

    The following arguments were given to ICouch.DB.server_endpoint/2:

        # 1
        %ICouch.DB{name: "my-test-db",
     server: %ICouch.Server{direct: nil,
      ib_options: [basic_auth: {'username', 'password'}], timeout: nil,
      uri: %URI{authority: "127.0.0.1:5984", fragment: nil, host: "127.0.0.1",
       path: "/", port: 5984, query: nil, scheme: "http", userinfo: nil}}}

        # 2
        {nil, []}

    Attempted function clauses (showing 3 out of 3):

        def server_endpoint(%ICouch.DB{name: db_name}, {path, options}) when is_binary(path)
        def server_endpoint(%ICouch.DB{name: db_name}, %URI{path: path} = endpoint)
        def server_endpoint(%ICouch.DB{name: db_name}, endpoint) when is_binary(endpoint)

    (icouch) lib/icouch/db.ex:65: ICouch.DB.server_endpoint/2
    (icouch) lib/icouch/db.ex:33: ICouch.DB.send_req/4
    (icouch) lib/icouch.ex:526: ICouch.save_doc/3

# Create server connection
server = ICouch.server_connection("http://127.0.0.1:5984/", basic_auth: {"username", "password"})

# Open database
{:ok, db} = ICouch.open_db(server, "my-test-db")

# Try to insert a document
doc = ICouch.save_doc(db, %{name: "Someone", email: "[email protected]"})
# Boom!

# Second approach
doc = ICouch.Document.new(%{name: "Someone", email: "[email protected]"})
new_doc = ICouch.save_doc(db, doc)
# Same Boom!