The following is a complete list of the polymorphic variants supported by Jsonxt

• `Null: JSON null
• `Bool of bool: JSON boolean
• `Int of int: JSON number without decimal point or exponent.
• `Intlit of string: JSON number without decimal point or exponent, preserved as a string.
• `Float of float: JSON number, inf, -inf, Infinity, -Infinity, nan, -nan, NaN or -NaN
• `Floatlit of string: JSON number, inf, -inf, Infinity, -Infinity, nan, -nan, NaN or -NaN, preserved as a string.
• `String of string: JSON string. Bytes in the range 128-255 are preserved when reading and writing.
• `Stringlit of string: JSON string literal including the double quotes.
• `Assoc of (string * json) list: JSON object.
• `List of json list: JSON array.
• `Tuple of json list: Tuple (non-standard extension of JSON). Syntax: ("abc", 123).
• `Variant of (string * json option): Variant (non-standard extension of JSON). Syntax: <"Foo"> or <"Bar":123>.

Extended supports all Json types including the non-standard tuple and variant introduced by Yojson

Basic supports standard Json types that are supported by the JSON standard but also supports integers rather than just floats

Strict supports only types that are supported by the JSON standard. Integers are not supported