This element serves as the head of a substitution group
for extensibility elements that wish to appear as a child
of wsdl:message, wsdl:interface and/or wsdl:binding
Abstract Element msginterfaceAndBindingExt
The msginterfaceAndBindingExt element cannot have "xsi:nil" as an attribute.
The msginterfaceAndBindingExt element in XML instance can be substituted with other elements.
XML Instance
<msginterfaceAndBindingExt> is an abstract element.
<xs:documentation>
This element serves as the head of a substitution group
for extensibility elements that wish to appear as a child
of wsdl:message, wsdl:interface and/or wsdl:binding
</xs:documentation>