action postmarkapp_edit_sender_signature { label: "Update a Sender Signature" provider: postmarkapp method: PUT path: "/senders/{signatureid}" encoding: json input: { type: "object" properties: { "X-Postmark-Account-Token": { type: "string" } signatureid: { type: "string" } } required: ["X-Postmark-Account-Token", "signatureid"] additionalProperties: false } output: { type: "object" additionalProperties: true } }