You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: import_do_it_volunteer_opportunities.rb
    path of file: ./repos/LocalSupport/app/services
    
    the code of the file until where you have to start completion: class ImportDoItVolunteerOpportunities

  def self.with(radius=0.5,
                http = HTTParty,
                model_klass = VolunteerOp,
                trace_handler = DoitTrace)
    new(http, model_klass, radius, trace_handler).send(:run)
  end

  private

  attr_reader :http, :model_klass, :radius, :trace_handler

  def initialize http, model_klass, radius, trace_handler
    @http = http
    @
    
  def populate_vol_op_attributes model, op
    location = Location.new longitude: op['lng'], latitude: op['lat']
    model.source        = 'doit'
    model.latitude      = location.latitude
    model.longitude     = location.longitude
    model.title         = op['title']
    model.description   = op['description']
    model.doit_op_id    = op['id']
    model.doit_org_name = op['for_recruiter']['name']
    model.doit_org_link = op['for_recruiter']['slug']
    model.updated_at    = op['updated']
    model.created_at    = op['created']
    model.imported_at   = Time.current
    model
  end