The help text to be displayed to the user when --help is passed.
An optional hint for the type of input expected, will be displayed in the help output.
The option name.
Specifies the resolution strategy. If Path is provided, values will be resolved according to their
location in a file. If String or no value is provided, values will not be resolved.
An optional validation function that validates a potential value of this option. The function must throw an Error if the validation fails and should do nothing otherwise.
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If not specified defaults to the empty string for both
StringandPath.