code: def least_upper_float(dt: DType) -> DType:
      return (
          dt
          if dtypes.is_float(dt)
          else least_upper_dtype(dt, dtypes.float32)
      )
  
imports: from typing import Final, Optional, ClassVar, Set, Tuple, Dict
  from dataclasses import dataclass
  import numpy
  import functools
label_desc: Use image node_id 3 for calling a global function with example usage: least_upper_float(dt) and returns: unknown