class chainer.utils.type_check.TypeInfoTuple[source]

Type information of input/gradient tuples.

It is a sub-class of tuple containing TypeInfo. The i-th element of this object contains type information of the i-th input/gradient data. As each element is Expr, you can easily check its validity.


count(value) → integer -- return number of occurrences of value
index(value[, start[, stop]]) → integer -- return first index of value.

Raises ValueError if the value is not present.


Returns an expression representing its length.

Returns:An expression object representing length of the tuple.
Return type:Expr