Support w8a8 int8 quantization config (#2881)

python/sglang/srt/layers/quantization/__init__.py

@@ -23,6 +23,7 @@ from vllm.model_executor.layers.quantization.tpu_int8 import Int8TpuConfig
 from sglang.srt.layers.quantization.base_config import QuantizationConfig
 from sglang.srt.layers.quantization.fp8 import Fp8Config
 from sglang.srt.layers.quantization.modelopt_quant import ModelOptFp8Config
+from sglang.srt.layers.quantization.w8a8_int8 import W8A8Int8Config
 
 QUANTIZATION_METHODS: Dict[str, Type[QuantizationConfig]] = {
     "aqlm": AQLMConfig,
@@ -42,6 +43,7 @@ QUANTIZATION_METHODS: Dict[str, Type[QuantizationConfig]] = {
     "bitsandbytes": BitsAndBytesConfig,
     "qqq": QQQConfig,
     "experts_int8": ExpertsInt8Config,
+    "w8a8_int8": W8A8Int8Config,
 }