rich media parser ttl files consistency

lib/pleroma/web/rich_media/parser/ttl.ex

@@ -3,5 +3,5 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Web.RichMedia.Parser.TTL do
-  @callback ttl(Map.t(), String.t()) :: {:ok, Integer.t()} | {:error, String.t()}
+  @callback ttl(Map.t(), String.t()) :: Integer.t() | nil
 end

lib/pleroma/web/rich_media/parser/ttl/aws_signed_url.ex

@@ -5,7 +5,7 @@
 defmodule Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrl do
   @behaviour Pleroma.Web.RichMedia.Parser.TTL
 
-  @impl Pleroma.Web.RichMedia.Parser.TTL
+  @impl true
   def ttl(data, _url) do
     image = Map.get(data, :image)
 

test/pleroma/web/rich_media/parser/ttl/aws_signed_url_test.exs

@@ -2,7 +2,7 @@
 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
 # SPDX-License-Identifier: AGPL-3.0-only
 
-defmodule Pleroma.Web.RichMedia.Parsers.TTL.AwsSignedUrlTest do
+defmodule Pleroma.Web.RichMedia.Parser.TTL.AwsSignedUrlTest do
   use ExUnit.Case, async: true
 
   test "s3 signed url is parsed correct for expiration time" do