from __future__ import annotations

a_    					=       8.988E9  # units = N * m^s * C^-2





def    __lowercase     (						lowerCamelCase					:     float  ,  lowerCamelCase					:     float  ,  lowerCamelCase					:     float  ,  lowerCamelCase					:     float	):
 UpperCamelCase_					:						Optional[Any] =					abs(chargea * chargea	)

 if (force, chargea, chargea, distance).count(0	) != 1:
  raise ValueError('One and only one argument must be 0'	)
 if distance < 0:
  raise ValueError('Distance cannot be negative'	)
 if force == 0:
  UpperCamelCase_					:						Tuple =					COULOMBS_CONSTANT * charge_product / (distance**2)
  return {"force": force}
 elif chargea == 0:
  UpperCamelCase_					:						Any =					abs(lowerCamelCase	) * (distance**2) / (COULOMBS_CONSTANT * chargea)
  return {"charge1": chargea}
 elif chargea == 0:
  UpperCamelCase_					:						Optional[Any] =					abs(lowerCamelCase	) * (distance**2) / (COULOMBS_CONSTANT * chargea)
  return {"charge2": chargea}
 elif distance == 0:
  UpperCamelCase_					:						Union[str, Any] =					(COULOMBS_CONSTANT * charge_product / abs(lowerCamelCase	)) ** 0.5
  return {"distance": distance}
 raise ValueError('Exactly one argument must be 0'	)


if __name__ == "__main__":
   import doctest

   doctest.testmod()




from torch import nn





class 		_lowercase						(					nn.Module       ):

 def __init__( self	:							Any   ,      snake_case	:							Dict   ,      snake_case	:							Union[str, Any]			)   ->						Dict:

  """simple docstring"""





  super().__init__()
  UpperCamelCase_					:						List[Any] =					class_size
  UpperCamelCase_					:						List[Any] =					embed_size
  # self.mlp1 = nn.Linear(embed_size, embed_size)
  # self.mlp2 = (nn.Linear(embed_size, class_size))
  UpperCamelCase_					:						int =					nn.Linear(snake_case   ,      snake_case			)


 def 						SCREAMING_SNAKE_CASE__   ( self	:							List[str]   ,      snake_case	:							Any			)   ->						str:

  """simple docstring"""





  UpperCamelCase_					:						Dict =					self.mlp(snake_case			)
  return logits



