Function remote_write 

pub async fn remote_write(
    __arg0: State<PromStoreState>,
    __arg1: Query<RemoteWriteQuery>,
    __arg2: (Extension<QueryContext>, Extensions),
    content_type: Option<TypedHeader<ContentType>>,
    pipeline_info: PipelineInfo,
    content_encoding: TypedHeader<ContentEncoding>,
    body: Bytes,
) -> Result<Response>