content: from torch import nn
  
  # functions
  
  def round_down_nearest_multiple(num, divisor):
      return num // divisor * divisor
  
  def curtail_to_multiple(t, mult, from_left = False):
      data_len = t.shape[-1]
      rounded_seq_len = round_down_nearest_multiple(data_len, mult)
      seq_slice = slice(None, rounded_seq_len) if not from_left else slice(-rounded_seq_len, None)
      return t[..., seq_slice]
  
  # base class
  
  class AudioConditionerBase(nn.Module):
      pass
  