So I understand the standard way to generate img tags in Shopify theme liquid file is:

 {{
        product
        | image_url: width: 1946
        | image_tag:
          class: image_class,
          loading: lazy,
          sizes: sizes,
          widths: '246, 493, 600, 713, 823, 990, 1100, 1206, 1346, 1426, 1646, 1946'
      }}

But I want to generate an img tag based on my own url, I tried

 {{
        'https://my-domain.com/my-image.jpg'
        | image_tag:
          class: image_class,
          loading: lazy,
          sizes: sizes,
          widths: '246, 493, 600, 713, 823, 990, 1100, 1206, 1346, 1426, 1646, 1946'
      }}

but it throws an error “Liquid error: input to image_tag must be an image_url”. While I can manually create an img tag but I want to do it in a more decent way.