/// <summary>
        /// Parses body from the specified stream
        /// </summary>
        /// <param name="owner">Owner MIME entity.</param>
        /// <param name="mediaType">MIME media type. For example: text/plain.</param>
        /// <param name="stream">Stream from where to read body.</param>
        /// <returns>Returns parsed body.</returns>
        /// <exception cref="ArgumentNullException">Is raised when <b>stream</b>, <b>mediaType</b> or <b>stream</b> is null reference.</exception>
        /// <exception cref="ParseException">Is raised when any parsing errors.</exception>
        protected new static MIME_b Parse(MIME_Entity owner, string mediaType, SmartStream stream)
        {
            if (owner == null)
            {
                throw new ArgumentNullException("owner");
            }
            if (mediaType == null)
            {
                throw new ArgumentNullException("mediaType");
            }
            if (stream == null)
            {
                throw new ArgumentNullException("stream");
            }
            if (owner.ContentType == null || owner.ContentType.Param_Boundary == null)
            {
                throw new ParseException("Multipart entity has not required 'boundary' paramter.");
            }

            MIME_b_MultipartRelated retVal = new MIME_b_MultipartRelated(owner.ContentType);

            ParseInternal(owner, mediaType, stream, retVal);

            return(retVal);
        }
        /// <summary>
        /// Parses body from the specified stream
        /// </summary>
        /// <param name="owner">Owner MIME entity.</param>
        /// <param name="mediaType">MIME media type. For example: text/plain.</param>
        /// <param name="stream">Stream from where to read body.</param>
        /// <returns>Returns parsed body.</returns>
        /// <exception cref="ArgumentNullException">Is raised when <b>stream</b>, <b>mediaType</b> or <b>stream</b> is null reference.</exception>
        /// <exception cref="ParseException">Is raised when any parsing errors.</exception>
        protected new static MIME_b Parse(MIME_Entity owner, string mediaType, SmartStream stream)
        {
            if (owner == null)
            {
                throw new ArgumentNullException("owner");
            }
            if (mediaType == null)
            {
                throw new ArgumentNullException("mediaType");
            }
            if (stream == null)
            {
                throw new ArgumentNullException("stream");
            }
            if (owner.ContentType == null || owner.ContentType.Param_Boundary == null)
            {
                throw new ParseException("Multipart entity has not required 'boundary' paramter.");
            }

            MIME_b_MultipartRelated retVal = new MIME_b_MultipartRelated(owner.ContentType);
            ParseInternal(owner, mediaType, stream, retVal);

            return retVal;
        }