code: def convert_float_samples_to_int16(y):
      """Convert floating-point numpy array of audio samples to int16."""
      if not issubclass(y.dtype.type, np.floating):
          raise ValueError("input samples not floating-point")
      return (y * np.iinfo(np.int16).max).astype(np.int16)
  
file_path: audiomentations/audiomentations/core/utils.py
imports: import os
  from functools import lru_cache
  from pathlib import Path
  from typing import List, Union, Tuple
  import math
  import numpy
  from numpy.typing import NDArray
label_desc: Use image node_id 9 for calling a global function with example usage: convert_float_samples_to_int16(y) and returns: unknown