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: basic_datepicker.rb
    path of file: ./repos/openproject/spec/support/components/datepicker
    
    the code of the file until where you have to start completion: require_relative 'datepicker'

module Components
  class BasicDatepicker < Datepicker
    ##
    # Open a datepicker drop field with the trigger,
    # an
    
    def self.update_field(trigger, date)
      datepicker = new

      datepicker.instance_eval do
        input = page.find(trigger)
        input.click
      end

      date = Date.parse(date) unless date.is_a?(Date)
      datepicker.set_date(date.strftime('%Y-%m-%d'))
    end