- array_key
- bool
- dict
- float
- int
- intersection
- is_array ( deprecated )
- is_arraykey ( deprecated )
- is_bool ( deprecated )
- is_callable
- is_float ( deprecated )
- is_instanceof ( deprecated )
- is_int ( deprecated )
- is_iterable ( deprecated )
- is_nan
- is_null ( deprecated )
- is_numeric ( deprecated )
- is_object ( deprecated )
- is_resource ( deprecated )
- is_scalar ( deprecated )
- is_string ( deprecated )
- iterable
- literal_scalar
- map
- mixed
- mutable_map
- mutable_vector
- non_empty_string
- null
- nullable
- num
- object
- optional
- positive_int
- resource
- scalar
- shape
- string
- union
- vec
- vector