async fn build_loki_pipeline_context_req(
handler: &PipelineHandlerRef,
pipeline_req: LokiPipelineContextReq,
ctx: &QueryContextRef,
) -> Result<ContextReq>async fn build_loki_pipeline_context_req(
handler: &PipelineHandlerRef,
pipeline_req: LokiPipelineContextReq,
ctx: &QueryContextRef,
) -> Result<ContextReq>