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: file_image.rb
    path of file: ./repos/onebody/app/models/concerns
    
    the code of the file until where you have to start completion: require 'active_support/concern'

module Concerns
  module FileImage
  
    
    def mini_magick_image
      img = MiniMagick::Image.new(file.path)
      img if img.valid? && %w(JPEG PNG GIF).include?(img[:format])
    rescue
      # html files cause MiniMagick to freak out without an Exception class :-(
      nil
    end