val param : t Async.Command.Param.tOffers configuration parameters for where to save a file and whether to serve it
val write_and_view :
?num_temp_strs:int ->
t ->
default_name:string ->
f:(Tracing_zero.Writer.t -> 'a Async.Deferred.Or_error.t) ->
'a Async.Deferred.Or_error.tAfter f writes a trace, either hosts a Perfetto UI server for the resulting file or just saves it and prints a message about how to view the resulting trace.
It is the responsibility of f to close the writer and Perfetto may fail to load the trace if the writer isn't closed.
module Serve : sig ... endUsed to view existing trace files in a hosted UI