def or_missing(self):
"""Finish the case statement by returning missing.
Notes
-----
If no condition from a :meth:`.CaseBuilder.when` call is ``True``, then
the result is missing.
Parameters
----------
then : :class:`.Expression`
Returns
-------
:class:`.Expression`
"""
if len(self._cases) == 0:
raise ExpressionException("'or_missing' cannot be called without at least one 'when' call")
from hail.expr.functions import null
return self._finish(null(self._ret_type))
def or_missing(self):
"""Finish the case statement by returning missing.
Notes
-----
If no condition from a :meth:`.CaseBuilder.when` call is ``True``, then
the result is missing.
Parameters
----------
then : :class:`.Expression`
Returns
-------
:class:`.Expression`
"""
if len(self._cases) == 0:
raise ExpressionException("'or_missing' cannot be called without at least one 'when' call")
from hail.expr.functions import null
return self._finish(null(self._ret_type))