:       (a) "Guidance document" means, except as provided in      par.   (b),  any   formal  or  official   document  or      communication issued by an agency, including a manual,      handbook, directive, or informational bulletin, that      does any of the following:       0. Explains the agency's implementation of a statute or      rule enforced or administered by the agency, including      the current or proposed operating procedure of the      agency.       0. Provides guidance or advice with respect to how the      agency is likely to apply a statute or rule enforced or      administered by the agency, if that guidance or advice      is likely to apply to a class of persons similarly      affected.       (b) "Guidance document" does not include any of the     