Set constant with JSON types of non-structured values that are not null.
Source position: fpjson.pp line 98
| const ActualValueJSONTypes = ValueJSONTypes - [jtNull]; | 
ActualValueJSONTypes is a set constant designating the JSON types that have a non-null single value, i.e., all types except array or object or null.
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 | Set constant with JSON types of non-structured values. | |
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 | Set constant with JSON types of structured values. |