get contentCrc64() {
        return this.originalResponse.contentCrc64;
    }
If the request is to read a specified range and the x-ms-range-get-content-crc64 is set to
true, then the request returns a crc64 for the range, as long as the range size is less than
or equal to 4 MB. If both x-ms-range-get-content-crc64 & x-ms-range-get-content-md5 is
specified in the same request, it will fail with 400(Bad Request)