thisisnic commented on code in PR #35055:
URL: https://github.com/apache/arrow/pull/35055#discussion_r1229173386


##########
r/R/dataset-format.R:
##########
@@ -113,6 +115,45 @@ ParquetFileFormat$create <- function(...,
 #' @export
 IpcFileFormat <- R6Class("IpcFileFormat", inherit = FileFormat)
 
+#' JSON dataset file format
+#'
+#' @description
+#' A `JsonFileFormat` is a [FileFormat] subclass which holds information about 
how to
+#' read and parse the files included in a JSON `Dataset`.
+#'
+#' @section Factory:
+#' `JsonFileFormat$create()` can take options in the form of lists passed 
through as `parse_options`,
+#'  or `read_options` parameters.
+#'
+#'  Available `read_options` parameters:
+#'  * `use_threads`: Whether to use the global CPU thread pool. Default 
`TRUE`. If `FALSE`, JSON input must end with an
+#'  empty line.

Review Comment:
   I must have copied and pasted this to the wrong place, good catch!



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