concepts.dsl.expression.NullExpression#

class NullExpression[source]#

Bases: ObjectOrValueOutputExpression

Methods

cached_string([max_length])

check_arguments()

Attributes

return_type

dtype

The type of the null expression.

__init__(dtype)[source]#
Parameters:

dtype (ObjectType | ValueType | SequenceType) –

__new__(**kwargs)#
cached_string(max_length=None)#
Parameters:

max_length (int | None) –

check_arguments()#
dtype: ObjectType | ValueType | SequenceType#

The type of the null expression.

property return_type: ObjectType | ValueType | SequenceType#