


'''simple docstring'''




from transformers import BertTokenizerFast

from .custom_tokenization import CustomTokenizer






class UpperCAmelCase							(		UpperCAmelCase_							):
    _A :			Tuple						   =       CustomTokenizer
    pass












'''simple docstring'''




from __future__ import annotations







def _lowerCAmelCase     (      _lowerCAmelCase       ,    _lowerCAmelCase       ,    _lowerCAmelCase       ,    )->     tuple:
 if (electron_conc, hole_conc, intrinsic_conc).count(0    ) != 1:
  raise ValueError('You cannot supply more or less than 2 values'    )
 elif electron_conc < 0:
  raise ValueError('Electron concentration cannot be negative in a semiconductor'    )
 elif hole_conc < 0:
  raise ValueError('Hole concentration cannot be negative in a semiconductor'    )
 elif intrinsic_conc < 0:
  raise ValueError(
      'Intrinsic concentration cannot be negative in a semiconductor'    )
 elif electron_conc == 0:
  return (
      "electron_conc",
      intrinsic_conc**2 / hole_conc,
  )
 elif hole_conc == 0:
  return (
      "hole_conc",
      intrinsic_conc**2 / electron_conc,
  )
 elif intrinsic_conc == 0:
  return (
      "intrinsic_conc",
      (electron_conc * hole_conc) ** 0.5,
  )
 else:
  return (-1, -1)


if __name__ == "__main__":
    import doctest

    doctest.testmod()





