Test whether each element of an array is also present in a second array.
Returns a boolean array of the same shape as element that is true where
the element is in testElements, and false otherwise. If invert is true,
the result is negated, as if by logicalNot(isin(...)).
Test whether each element of an array is also present in a second array.
Returns a boolean array of the same shape as
elementthat is true where the element is intestElements, and false otherwise. Ifinvertis true, the result is negated, as if bylogicalNot(isin(...)).