TRANSACTION POLICY
==================

Use litedbc.LiteDBC.cursor context:
    - for a single Read
    - for a single Write
    - for a non-transactional sequence of Reads
    - for a non-transactional sequence of Writes

Use litedbc.LiteDBC.transaction context:
    - for a transactional sequence of Reads

Use litedbc.LiteDBC.immediate_transaction context:
    - for Read-then-Write
    - for a transactional sequence of Writes
