from rx import Observable
from rx.internal import extensionmethod
from .elementatordefault import _element_at_or_default
@extensionmethod(Observable)
def element_at(self, index):
"""Returns the element at a specified index in a sequence.
Example:
res = source.element_at(5)
Keyword arguments:
:param int index: The zero-based index of the element to retrieve.
:returns: An observable sequence that produces the element at the
specified position in the source sequence.
:rtype: Observable
"""
return _element_at_or_default(self, index, False)