Ansible's filter that receives a list of dicts and merges all of them in one single dict

flatten_list.py

# Receives a list of dicts and merges all
# sub-dicts into one
def flatten_list(l):
    result = {}
    for item in l:
        result.update(item)

    return result

class FilterModule(object):
    def filters(self):
        return {
            'flatten_list': flatten_list,
        }