constructor() {
        /**
         * Permission to read resources and list queues and tables granted.
         */
        this.read = false;
        /**
         * Permission to write resources granted.
         */
        this.write = false;
        /**
         * Permission to delete blobs and files granted.
         */
        this.delete = false;
        /**
         * Permission to delete versions granted.
         */
        this.deleteVersion = false;
        /**
         * Permission to list blob containers, blobs, shares, directories, and files granted.
         */
        this.list = false;
        /**
         * Permission to add messages, table entities, and append to blobs granted.
         */
        this.add = false;
        /**
         * Permission to create blobs and files granted.
         */
        this.create = false;
        /**
         * Permissions to update messages and table entities granted.
         */
        this.update = false;
        /**
         * Permission to get and delete messages granted.
         */
        this.process = false;
        /**
         * Specfies Tag access granted.
         */
        this.tag = false;
        /**
         * Permission to filter blobs.
         */
        this.filter = false;
        /**
         * Permission to set immutability policy.
         */
        this.setImmutabilityPolicy = false;
        /**
         * Specifies that Permanent Delete is permitted.
         */
        this.permanentDelete = false;
    }
ONLY AVAILABLE IN NODE.JS RUNTIME.

This is a helper class to construct a string representing the permissions granted by an AccountSAS. Setting a value
to true means that any SAS which uses these permissions will grant permissions for that operation. Once all the
values are set, this should be serialized with toString and set as the permissions field on an
{@link AccountSASSignatureValues} object. It is possible to construct the permissions string without this class, but
the order of the permissions is particular and this class guarantees correctness.