constructor({dbBackup, models, auth, apiMail, apiSettings}) {
        this.dbBackup = dbBackup;
        this.models = models;
        this.auth = auth;
        this.apiMail = apiMail;
        this.apiSettings = apiSettings;

        this.assignTagToUserPosts = this.assignTagToUserPosts.bind(this);
    }
@param {Object} dependencies
@param {IdbBackup} dependencies.dbBackup
@param {IModels} dependencies.models
@param {IAuth} dependencies.auth
@param {Object} dependencies.apiMail
@param {Object} dependencies.apiSettings