5.1.24 ServiceDescription Type

The Section 5.1.24 "ServiceDescription Type" has the following field
description.

schemaTypes: This field can carry schemas with types that are referenced
by extensionDescriptions and eventDescriptions. While the descriptions
can also reference schemas using a URI, this provides a convenient
mechanism to deliver schemas which do not have a publicly accessible
URI.

But schemaTypes field is missing in the ServiceDescription structure in
Section 5.1.24 and in the xsd.

Satish