code: def round_result(cls, v: float):
      if v is not None:
          return round(v, FLOAT_METADATA_METRICS_PRECISION)
      return v
  
imports: from datetime import datetime
  from typing import Generic, List, Literal, Optional, TypeVar, Union
  from uuid import UUID
  from argilla.server.enums import MetadataPropertyType
  from argilla.server.pydantic_v1 import BaseModel, Field, validator
  from argilla.server.pydantic_v1.generics import GenericModel
  from argilla.server.schemas.base import UpdateSchema
  from argilla.server.schemas.v1.datasets import MetadataPropertySettings, MetadataPropertyTitle
label_desc: Use image node_id 1 for calling the FloatMetadataMetrics obj's underlying member method code with example usage: obj.round_result(cls, v) and returns: v, round