Grep (janestreet_csv.janestreet_csv.csv_tool_lib.Csv_tool

module Target_fields : sig ... end

val run : 
  ?separator:char ->
  ?skip_lines:int ->
  invert:bool ->
  always_print_header:bool ->
  grep_fields:Target_fields.t ->
  regexp:Re2.t ->
  Csv_common.Or_file.t ->
  unit Core.Or_error.t Async.Deferred.t