複数画像を別レコード扱いにした際にMiniMagickを使うとundefined method `tempfile' になる

NoMethodError in PostsController#create

undefined method `tempfile' for ["", #<ActionDispatch::Http::UploadedFile:0x000000010fd0b000 
@tempfile=#Tempfile:/var/folders/xy/xfg7t3952yqfz87kmgvkh2jr0000gn/T/RackMultipart20230626-44964-lmccik.jpg>, 
@content_type="image/jpeg", 
@original_filename="1.jpg", 
@headers="Content-Disposition: form-data; name=\"post[images][]\"; filename=\"1.jpg\"\r\nContent-Type: image/jpeg\r\n">]
:Array

<%= form_with(model: post) do |form| %>

  <div>
    <%= form.label :images, style: "display: block" %>
    <%= form.file_field :images, multiple: true %>
  </div>

  <div>
    <%= form.label :comment, style: "display: block" %>
    <%= form.text_area :comment %>
  </div>

  <div>
    <%= form.submit %>
  </div>
<% end %>

 def create
    params[:post][:images].each do |image|

      image.tempfile = ImageProcessing::MiniMagick
      .source(params[:post][:images].tempfile)
      .resize_to_limit(1024, 768)
      .strip
      .call

      @post=Post.new(
        images:image,
        user_id: @current_user.id,
        comment:params[:post][:comment]
        )
      @post.save
    end
    redirect_to "/#{@current_user.name}"
  end

class Post < ApplicationRecord
    has_many_attached :images
end

.source(params[:post][:images].tempfile)

.source(image.tempfile)

undefined method `tempfile' for "":String