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# SPDX-License-Identifier: Apache-2.0
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# Licensed under the Apache License, Version 2.0 (the "License");
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# http://www.apache.org/licenses/LICENSE-2.0
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# TODO: rename to avoid ambiguity with vllm package
from vllm.engine.arg_utils import AsyncEngineArgs
from vllm.utils import FlexibleArgumentParser

from dynamo.sdk.lib.config import ServiceConfig


def parse_vllm_args(service_name, prefix) -> AsyncEngineArgs:
    config = ServiceConfig.get_instance()
    vllm_args = config.as_args(service_name, prefix=prefix)
    parser = FlexibleArgumentParser()
    parser.add_argument(
        "--enable-disagg", action="store_true", help="Enable disaggregation"
    )
    parser.add_argument(
        "--data-parallel-start-rank",
        "-dpr",
        type=int,
        default=0,
        help="Starting data parallel rank for secondary nodes.",
    )
    parser = AsyncEngineArgs.add_cli_args(parser)
    args = parser.parse_args(vllm_args)
    engine_args = AsyncEngineArgs.from_cli_args(args)
    engine_args.enable_disagg = args.enable_disagg
    engine_args.data_parallel_start_rank = args.data_parallel_start_rank
    return engine_args
