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: base.rb
    path of file: ./repos/rubrowser/lib/rubrowser/parser/relation
    
    the code of the file until where you have to start completion: require 'rubrowser/parser/definition/base'

module Rubrowser
  module Parser
    module Relation
      class Base
        attr_reader :file, :line

        def initialize(namespace, caller_namespace, file: nil, line: nil)
          
    
        def resolve(definitions)
          possibilities.find do |possibility|
            !definitions.bsearch { |definition| definition <=> possibility }.nil?
          end || possibilities.last
        end

        def ==(other)
          namespace == other.namespace &&
            caller_namespace == other.caller_namespace &&
            circular? == other.circular?
        end

        private

        def possibilities
          if absolute?
            return [
              Definition::Base.new(@namespace.compact, file: file, line: line)
            ]
          end

          possible_parent_namespaces
            .map { |possible_parent| possible_parent + @namespace }
            .push(@namespace)
            .map { |i| Definition::Base.new(i, file: file, line: line) }
        end