. Can put, get and stream files from FTP servers.
  Similar interface as s3filez.
<h2><a name="types">Data Types</a></h2>

<h3 class="typedecl"><a name="type-acl_type">acl_type()</a></h3>
<p><tt>acl_type() = private | public_read | public_read_write | authenticated_read | bucket_owner_read | bucket_owner_full_control</tt></p>


<h3 class="typedecl"><a name="type-config">config()</a></h3>
<p><tt>config() = {Username::binary(), Password::binary()}</tt></p>


<h3 class="typedecl"><a name="type-put_data">put_da