Function decryptMessageNode
- decryptMessageNode(stanza, meId, repository, logger): { 
    author: string; 
    category: string; 
    fullMessage: IWebMessageInfo; 
    decrypt() => Promise<void>; 
} Parameters
meId: string
logger: Logger
Returns { 
    author: string; 
    category: string; 
    fullMessage: IWebMessageInfo; 
    decrypt() => Promise<void>; 
}
author: string
category: string
decrypt:function
- decrypt(): Promise<void>
 Returns Promise<void>