@staticmethod<EOL><INDENT>def read_single(db, collection, match_params=None):<DEDENT>
return db[collection].find_one(match_params if match_params else {}, {'<STR_LIT>': False})<EOL>
Wrapper for pymongo.find_one()
:param db: db connection
:param collection: collection to read data from
:param match_params: a query that matches the documents to select
:return: document ('_id' is excluded from result)