Optional ReadonlyboostReadonlyfieldOptional ReadonlyfieldOptional ReadonlylanguageString value specifying linguistic and regional preferences using the IETF language tag format, as described in BCP 47. The format combines language, script, and region using hyphen-separated subtags. For example: en, en-US, zh-Hans-SG.
Possible values for the
fieldTypeproperty on simple expressions indicating the data type of thefield.