(Object, Component<Radio>). Allows for the creation of a list of radio buttons, which function as xor inputs to one another. The user can then select one of these Radio buttons from the nested list. Nested lists are parsed according to .options, a String representing the .id of the user's chosen radio option is returned.
Note. ‘Returns:’ refers to what the Component value returns when exported to its .variable binding.
<component_key>: (Object, Component<Radio>)