[HELP] How configure "pundit" to display items belonging to a parent bond

I lost hours to solve it, but I know, I am a newbie =X.

My use case is, if the user have role :agency, he can see clients. But I have to use the link between the client's agency to verify this. Take a look bellow to see my code:

class Agency < ApplicationRecord
  has_many :agency_clients
  has_many :clients, through: :agency_clients

  resourcify
end

class AgencyClient < ActiveRecord::Base
  belongs_to :agency
  belongs_to :client
end

class Client < ApplicationRecord
  has_many :agency_clients
  has_many :agencies, through: :agency_clients

  resourcify
end

class ClientPolicy < ApplicationPolicy
  def show?
    user.has_role?(:admin) || user.has_role?(:client, record)
  end

  class Scope < Scope
    def resolve
      if user.has_role? :admin
        scope.all
      elsif user.has_role? :client, :any
        scope.with_role(:client, user)
      else
        scope.none
      end
    end
  end
end

Really, please, save my day! Be a hero!

I solve the problem with the help of Chris, thank you Chris Oliver.

Take a look for the answer here.