text: from dataclasses import dataclass, field
  from typing import List, Iterable, Optional
  
  from laxleague.guardian import Guardian
  
  
  @dataclass
  class Player:
      """ A lacrosse player in the league """
  
      first_name: str
      last_name: str
      guardians: List[Guardian] = field(default_factory=list)
  
      def add_guardian(self, guardian: Guardian):
          self.guardians.append(guardian)
  
      def add_guardians(self, guardians: Iterable[Guardian]):
          self.guardians.extend(guardians)
  
      @property
      def primary_guardian(self) -> Optional[Guardian]:
          return self.guardians[0] if self.guardians else None
  