the name of the custom element to define
Adds event listener options to a method used as an event listener in a lit-html template.
An object that specifis event listener options as accepted by
											EventTarget#addEventListener and EventTarget#removeEventListener.
Current browsers support the capture, passive, and once options. See:
											https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Parameters
A property decorator which creates a LitElement property which reflects a
										corresponding attribute value. A PropertyDeclaration may optionally be
									supplied to configure property features.
A property decorator that converts a class property into a getter that executes a querySelector on the element's renderRoot.
A property decorator that converts a class property into a getter that executes a querySelectorAll on the element's renderRoot.
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Class decorator factory that defines the decorated class as a custom element.