text: from typing import TYPE_CHECKING
  from typing import List
  
  
  if TYPE_CHECKING:
      from poetry.core.packages.package import Package
      from poetry.core.packages.project_package import ProjectPackage
  
  
  class SolverResult:
      def __init__(
          self,
          root: "ProjectPackage",
          packages: List["Package"],
          attempted_solutions: int,
      ) -> None:
          self._root = root
          self._packages = packages
          self._attempted_solutions = attempted_solutions
  
      @property
      def packages(self) -> List["Package"]:
          return self._packages
  
      @property
      def attempted_solutions(self) -> int:
          return self._attempted_solutions
  