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from pydantic import BaseModelfrom core.workflow.entities.base_node_data_entities import BaseNodeDataclass AnswerNodeData(BaseNodeData):    """    Answer Node Data.    """    answer: strclass GenerateRouteChunk(BaseModel):    """    Generate Route Chunk.    """    type: strclass VarGenerateRouteChunk(GenerateRouteChunk):    """    Var Generate Route Chunk.    """    type: str = "var"    value_selector: list[str]class TextGenerateRouteChunk(GenerateRouteChunk):    """    Text Generate Route Chunk.    """    type: str = "text"    text: str
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