:ref:`tutorial` example, used :ref:`OandaClient` as a context manager. This is correct when the client does not need to be shared between multiple :term:`coroutines`.
This is a an example of multiple coroutines using the One OandaClient instance:
.. literalinclude:: ../../bin/concurrent_example.py
:emphasize-lines: 5
OandaClient requires initialization. The initialization procedure can delay execution of OandaClient. methods
If this is a concern for you, it is recommended to preemptively initialize the OandaClient instance.
.. literalinclude:: ../../bin/initialization.py
:emphasize-lines: 8
It is encouraged to check the service you wish to consume is available. See :ref:`health_api`.