buildkite graphql query to filter org pipelines by repo URL

graphql.txt

query PipelinesByRepoQuery {
  organization(slug: "yob-opensource") {
    pipelines(first:1, repository:{url:"https://github.com/yob/pdf-reader.git"}) {
      edges {
        node {
          name
          repository {
            url
          }
        }
      }
    }
  }
}