pub fn graphiql_source(graphql_endpoint_url: &str) -> String {
let stylesheet_source = r#"
"#;
let fetcher_source = r#"
"#;
format!(
r#"
GraphQL
{stylesheet_source}
{fetcher_source}
"#,
graphql_url = graphql_endpoint_url,
stylesheet_source = stylesheet_source,
fetcher_source = fetcher_source
)
}