bpmappers example

main.py

from bpmappers import *

class ObjectMapper(Mapper):
    key = RawField()

class ObjectListMapper(Mapper):
    member = NonKeyListDelegateField(ObjectMapper)

    def filter_member(self):
        return self.data

    def as_list(self):
        return self.as_dict()['member']

data = [
    {'key': 'val1'},
    {'key': 'val2'},
]
print(ObjectListMapper(data).as_list())

"""
$ python main.py
[{'key': 'val1'}, {'key': 'val2'}]
"""