Microsoft.Protocols.TestSuites.Common.OxcropsClient.IsReservedRopId C# (CSharp) Method

        public bool IsReservedRopId(byte ropId)
        {
            if (this.reservedRopIdsHT == null)
            {
                this.reservedRopIdsHT = new Hashtable();

                // Reserved RopId array
                byte[] reservedRopIds = 
                {
                    0x00, 0x28, 0x3C, 0x3D, 0x62, 0x65, 0x6A, 0x71, 0x7C, 0x7D,
                    0x85, 0x87, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x94, 0x95, 0x96,
                    0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D, 0x9E, 0x9F, 0xA0,
                    0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA,
                    0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3, 0xB4,
                    0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE,
                    0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8,
                    0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2,
                    0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC,
                    0xDD, 0xDE, 0xDF, 0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
                    0xE7, 0xE8, 0xE9, 0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 
                    0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xFA, 0xFB,
                    0xFC, 0xFD, 0x52, 0x83, 0x84, 0x88
                };

                for (int i = 0; i < reservedRopIds.Length; i++)
                {
                    this.reservedRopIdsHT.Add(reservedRopIds[i], "ROPID" + i.ToString());
                }
            }

            // Check ropId whether in Reserved RopIds hashtable
            return this.reservedRopIdsHT.ContainsKey(ropId);
        }