Fetch all media source URL of a post by slug

I am using the below graphql query to fetch post data, but I am not sure how to get only the media a post by slug and not the content

query PostBySlug($id: ID!, $idType: PostIdType!) {
  post(id: $id, idType: $idType) {
    title
    excerpt
    slug
    date
    featuredImage {
      node {
        sourceUrl
      }
    }
    content
  }
}