NoMethodError in ImagesController#import

Good Day , I have an error while upload csv file into my webpage Error NoMethodError in ImagesController#import undefined method `import' for Image:Class Iam fresher into the ruby on rails plz help me out

Model/image.rb

class Image < ApplicationRecord
has_one_attached :avatar
end
def self.import
CSV.foreach(file.path, headers: true) do |row|
Image.create! row.to_hash
end
end