access schema defined in LOAD statement in custom LoadFunc?

[Jim Donofrio]

Is there anyway within a LoadFunc to access the schema that a user 
defines after AS in a LOAD statement? Is there some property I can 
access in the UDFContext or ? pushProjection provides the schema from a 
FOREACH GENERATE and getSchema seems to be only meant to read part of 
the actual file or a JSON schema file off disk.