# the original udf
# it returns a single chararray (that's PigLatin for String)
@outputSchema('word:chararray')
def hi_world():
    return "hello world"
    
# this one returns a Python tuple. Pig recognises the first element 
# of the tuple as a chararray like before, and the next one as a 
# long (a kind of integer)
@outputSchema("word:chararray,number:long")
def hi_everyone():
  return "hi there", 15

#we can use outputSchema to define nested schemas too, here is a bag of tuples
@outputSchema('some_bag:bag{t:(field_1:chararray, field_2:int)}')
def bag_udf():
    return [
        ('hi',1000),
        ('there',2000),
        ('bill',0)
    ]

#and here is a map
@outputSchema('something_nice:map[]')
def my_map_maker():
    return {"a":"b", "c":"d", "e","f"}