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: blank_line_separation.rb
    path of file: ./repos/brew/Library/Homebrew/vendor/bundle-standalone/ruby/2.3.0/gems/rubocop-rspec-1.31.0/lib/rubocop/rspec
    
    the code of the file until where you have to start completion: module RuboCop
  module RSpec
    # Helps determine the offending location if there is not a blank line
    # following the node. Allows comments t
    
      def offending_loc(last_line)
        offending_line = processed_source[last_line - 1]

        content_length = offending_line.lstrip.length
        start          = offending_line.length - content_length

        source_range(processed_source.buffer, last_line, start, content_length)
      end