def first(self, count):
"""
Returns a new set containing the first n elements in this DataSet.
:param count: The desired number of elements.
:return: A DataSet containing the elements.
"""
child = OperationInfo()
child_set = DataSet(self._env, child)
child.identifier = _Identifier.FIRST
child.parent = self._info
child.count = count
self._info.children.append(child)
self._env._sets.append(child)
return child_set
def first(self, count):
"""
Returns a new set containing the first n elements in this DataSet.
:param count: The desired number of elements.
:return: A DataSet containing the elements.
"""
child = OperationInfo()
child_set = DataSet(self._env, child)
child.identifier = _Identifier.FIRST
child.parent = self._info
child.count = count
self._info.children.append(child)
self._env._sets.append(child)
return child_set
