How can I instantiate my variables in Boo, having problems?

I have a Player Attributes class: import UnityEngine

 class Stat ():
     public current as int
     public max     as int
     
 class PlayerAttributes ( MonoBehaviour ): 
     public Name          as string
     public level         as int
     public hp            as Stat = Stat()
     public ep            as Stat = Stat()
     
     public strength      as int   // How accurate and how much damage with melee attacks
     public dexterity     as int   // How accurate and how much damage with ranged attacks
     public vitality      as int   // How many hit points he has 
     public power         as int   // How much damage his energy attacks deal
     public resistance    as int   // How much defense he has against energy attacks
     public agility       as int
     public speed         as int   // How fast character attacks
     
     public meleeAtk      as int
     public rangedAtk     as int
     public defense       as int
     public powerAtk      as int
     public powerDef      as int
     public initiative    as single
     
     public exp             as Stat = Stat()
     
     def SetInitialStats ( 
                       name       as string, 
                       strength   as int, 
                       dexterity  as int, 
                       vitality   as int, 
                       power      as int, 
                       resistance as int, 
                       agility    as int, 
                       speed      as int, 
                       exp        as int
                     ):
         self.level      = 1
         self.Name       = name
         self.strength   = strength
         self.dexterity  = dexterity
         self.vitality   = vitality
         self.power      = power
         self.resistance = resistance
         self.agility    = agility
         self.speed      = speed
         self.exp.max    = self.level * (self.level + 1) * 500
         AddExp(exp)
         
         
     def AddExp ( experience as int ):
         exp.current += experience
         
         while exp.current >= exp.max and level < 99:
             exp.current -= exp.max
             exp.max      = level * (level + 1) * 500
             level       += 1
             IncreaseStats()
         
     def IncreaseStats ():
         strength   += 1
         dexterity  += 1
         vitality   += 1
         power      += 1
         resistance += 1
         agility    += 1
         speed      += 1
         
         meleeAtk   = (level * 7) + strength
         rangedAtk  = (level * 7) + dexterity
         defense    = (level * 2) + agility
         powerAtk   = (level * 7) + power
         powerDef   = (level * 2) + resistance
         initiative = 20 + ((speed * level)/1500)
         
         hp.max     = ((level * 5) + vitality) * 10
         hp.current = hp.max
         
         ep.max       = ((level * 5) + power)
         ep.current = ep.max

Jut anything simple really. Well I read in the docs to not use constructors with MonoBehaviour, but I try instantiating my variables with the Start() function which is SetInitialStats (...)

So In another script in the Start() function I call it up like this

 Player = PlayerAttributes.SetInitialStats('Robo', 20, 21, 19, 20, 18, 22, 22, 57000)

I get the warning: ' An instance of type 'PlayerAttributes' is required to access non static member'

Not sure what else I can do to setup my beginning stats.

I got this to work I Unityscript which worked with a constructor without MonoBehaviour so I don't know where else to go from here. I would like to stay using Boo.