

'''simple docstring'''
from ...utils import is_note_seq_available, is_transformers_available, is_torch_available
from ...utils import OptionalDependencyNotAvailable


try:
     if not (is_transformers_available() and is_torch_available()):
          raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
     from ...utils.dummy_torch_and_transformers_objects import *  # noqa F403
else:
     from .notes_encoder import SpectrogramNotesEncoder
     from .continous_encoder import SpectrogramContEncoder
     from .pipeline_spectrogram_diffusion import (
         SpectrogramContEncoder,
         SpectrogramDiffusionPipeline,
         TaFilmDecoder,
     )

try:
     if not (is_transformers_available() and is_torch_available() and is_note_seq_available()):
          raise OptionalDependencyNotAvailable()
except OptionalDependencyNotAvailable:
     from ...utils.dummy_transformers_and_torch_and_note_seq_objects import *  # noqa F403
else:
     from .midi_utils import MidiProcessor







'''simple docstring'''




from __future__ import annotations

_SCREAMING_SNAKE_CASE							     =			1.6021E-19  # units = C





def 	__lowerCamelCase			(      __lowerCAmelCase       :							float      ,    __lowerCAmelCase       :							float      ,    __lowerCAmelCase       :							float      ,    )		->  tuple[str, float]:
   if (conductivity, electron_conc, mobility).count(0		) != 1:
      raise ValueError("""You cannot supply more or less than 2 values"""		)
   elif conductivity < 0:
      raise ValueError("""Conductivity cannot be negative"""		)
   elif electron_conc < 0:
      raise ValueError("""Electron concentration cannot be negative"""		)
   elif mobility < 0:
      raise ValueError("""mobility cannot be negative"""		)
   elif conductivity == 0:
      return (
          "conductivity",
          mobility * electron_conc * ELECTRON_CHARGE,
      )
   elif electron_conc == 0:
      return (
          "electron_conc",
          conductivity / (mobility * ELECTRON_CHARGE),
      )
   else:
      return (
          "mobility",
          conductivity / (electron_conc * ELECTRON_CHARGE),
      )


if __name__ == "__main__":
 import doctest

 doctest.testmod()

