*   Changing signature of `MakeIterator` to enable propagating error status.
    *   KL divergence for two Dirichlet distributions.
    *   More consistent GcsFileSystem behavior for certain reads past EOF.
    *   Update benchmark for tf.scan to match ranges across eager and graph
        modes.
    *   Fixed bug in `tf.reduce_prod gradient` for complex dtypes.

pkg go/token, const DEC Token
pkg go/token, const DEFAULT Token
pkg go/token, const DEFER Token
pkg go/token, const DEFINE Token
pkg go/token, const ELLIPSIS Token
pkg go/token, const ELSE Token
pkg go/token, const EOF Token
pkg go/token, const EQL Token
pkg go/token, const FALLTHROUGH Token
pkg go/token, const FLOAT Token
pkg go/token, const FOR Token
pkg go/token, const FUNC Token
pkg go/token, const GEQ Token

pkg go/token, const DEC = 38
pkg go/token, const DEFAULT = 66
pkg go/token, const DEFER = 67
pkg go/token, const DEFINE = 47
pkg go/token, const ELLIPSIS = 48
pkg go/token, const ELSE = 68
pkg go/token, const EOF = 1
pkg go/token, const EQL = 39
pkg go/token, const FALLTHROUGH = 69
pkg go/token, const FLOAT = 6
pkg go/token, const FOR = 70
pkg go/token, const FUNC = 71
pkg go/token, const GEQ = 46