
from __future__ import annotations

from math import pi, sqrt

def a__    (       A_,     A_					):






  '''simple docstring'''





  if inductance <= 0:
    raise ValueError("""Inductance cannot be 0 or negative"""					)

  elif capacitance <= 0:
    raise ValueError("""Capacitance cannot be 0 or negative"""					)

  else:
    return (
        "Resonant frequency",
        float(1 / (2 * pi * (sqrt(inductance * capacitance					)))					),
    )


if __name__ == "__main__":
    import doctest

    doctest.testmod()



from __future__ import annotations

from collections.abc import Iterator




class        UpperCAmelCase_			:


  '''simple docstring'''







  def __init__( self			: Dict			,							UpperCamelCase__			: int    )			->	None:







    """simple docstring"""






    __magic_name__				     =       value
    __magic_name__				     =       None
    __magic_name__				     =       None







class        UpperCAmelCase_			:


  '''simple docstring'''







  def __init__( self			: Union[str, Any]			,							UpperCamelCase__			: Node    )			->	None:







    """simple docstring"""






    __magic_name__				     =       tree
  def 							_lowercase							( self			: Optional[Any]			,							UpperCamelCase__			: Node | None    )			->	int:







    """simple docstring"""






    if node is None:
      return 0
    return node.value + (
        self.depth_first_search(node.left    ) + self.depth_first_search(node.right    )
    )





  def __iter__( self			: int    )			->	Iterator[int]:







    """simple docstring"""






    yield self.depth_first_search(self.tree    )


if __name__ == "__main__":
    import doctest

    doctest.testmod()

