from enum import Enum


class UnitFrequency(str, Enum):
	""" The valid types of frequency units. """ # noqa: E501
	"""# Gigahertz <https://en.wikipedia.org/wiki/Hertz> """ # noqa: E501
	GIGAHERTZ = 'gigahertz'
	"""# Hertz <https://en.wikipedia.org/wiki/Hertz> """ # noqa: E501
	HERTZ = 'hertz'
	"""# Kilohertz <https://en.wikipedia.org/wiki/Hertz> """ # noqa: E501
	KILOHERTZ = 'kilohertz'
	"""# Megahertz <https://en.wikipedia.org/wiki/Hertz> """ # noqa: E501
	MEGAHERTZ = 'megahertz'
	"""# Microhertz <https://en.wikipedia.org/wiki/Hertz> """ # noqa: E501
	MICROHERTZ = 'microhertz'
	"""# Millihertz <https://en.wikipedia.org/wiki/Hertz> """ # noqa: E501
	MILLIHERTZ = 'millihertz'
	"""# Nanohertz <https://en.wikipedia.org/wiki/Hertz> """ # noqa: E501
	NANOHERTZ = 'nanohertz'
	"""# Terahertz <https://en.wikipedia.org/wiki/Hertz> """ # noqa: E501
	TERAHERTZ = 'terahertz'

	def __str__(self) -> str:
		return str(self.value)