def pick(keys: Sequence[str], doc: Dict) -> Dict:
"""Picks the provided keys from the dictionary.
Example
pick(["a", "b"], {"a": 1, "b": 2, "c": 3}) # => {"a": 1, "b": 2}
"""
if not _.isIterable(keys):
return None
if not isinstance(doc, dict):
return None
return {k: doc.get(k, None) for k in keys}
def getValues(doc, keys):
if not _.isIterable(keys):
return None
return _.map(lambda k: get(doc, k), keys)