List files at a given path within a filesystem data source.
list files in data source <data source reference> [at path "<path>"] [as text] [limit <limit>]
data source reference
String. Name of the data source to list the files in.
String. The path in the data source to list files in. Default: the root of the data source.
None. If present, returns the file list as a comma separated string. Otherwise, the list is rendered by the display system as a tabular data set.
Integer. The maximum number of file listings to show. Default: 1000.