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Ruby on Rails : image tag with variables from a class

I am looking for the corresponding tag of the following html code:

<img src="/assets/folder1/<%= @user.fullname %>.jpg" style='height:100%; width: 100%; object-fit: contain' alt="user" />

As you can see the part of the link to the picture is define by the varaiable user.fullname. The html works well but I am looking for the equivalent in Ruby.

Thanks for your support

https://apidock.com/rails/ActionView/Helpers/AssetTagHelper/image_tag

image_tag("/assets/folder1/#{ @user.fullname }.jpg", class: 'image')

CSS

img.image {
   width: 100%;
   height: 100%;
   object-fit: contain;
}

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