A JsonFileFormat is a FileFormat subclass which holds information about how to
read and parse the files included in a JSON Dataset.
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. DefaultTRUE. IfFALSE, JSON input must end with an empty line.block_size: Block size we request from the IO layer; also determines size of chunks whenuse_threadsisTRUE.
Available parse_options parameters:
newlines_in_values:Logical: are values allowed to contain CR (0x0dor\r) and LF (0x0aor\n) characters? (defaultFALSE)