interface Messageimport { type Message } from "https://deno.land/x/mailgun@v1.2.2/types.ts"; Index Signatures[header: `h:${string}`]: string[variable: `v:${string}`]: Record<string, unknown>Propertiesto: string[] | stringoptionalcc: string[] | stringoptionalbcc: string[] | stringoptionalreply: stringfrom: stringsubject: stringoptionaltext: stringoptionalhtml: stringoptionalamp-html: stringoptionalattachment: File[] | Fileoptionalinline: File[] | Fileoptionaltemplate: stringoptionalt:version: stringoptionalt:text: booleanoptionalt:variables: Record<string, unknown>optionaltesting: booleanoptionalo:tag: stringoptionalo:dkim: booleanoptionalo:deliverytime: stringoptionalo:deliverytime-optimize-period: stringoptionalo:time-zone-localize: stringoptionalo:testmode: booleanoptionalo:tracking: booleanoptionalo:tracking-clicks: boolean | "htmlonly"optionalo:tracking-opens: booleanoptionalo:require-tls: booleanoptionalo:skip-verification: booleanoptionalrecipient-variables: Record<string, Record<string, unknown>>