{
"name": "empty-header",
"description": "Empty List-Unsubscribe header. Returns None.",
"spec": {
"source": "RFC 2369",
"url": "https://www.rfc-editor.org/rfc/rfc2369#section-3.2",
"behavior": "An empty header is treated as 'no method offered'."
},
"input": {
"list_unsubscribe": "",
"list_unsubscribe_post": null
},
"expected": {
"kind": "None"
}
}