Validates paginated traits.
- The inputToken and outputToken properties must be set when an
operation's properties are optionally merged with a service's.
- The items property, if set, must reference a list or map
output member.
- The pageSize property, if set, must reference an optional integer
input member.
- The inputToken property must reference an optional string input
member.
- The outputToken property must reference an optional string output
member.
- The pageSize property, if set, must reference an optional input
member that targets an integer.