fix: correct test case for sql_flush for multiple delete table commands (#629)
fix: correct test case for sql_flush for multiple delete table commands (#629)

* feat: updated nox file for docs and docfx and added unit tests for client

* fix: lint_setup_py was failing in Kokoro is not fixed

* feat: updated nox file for docs and docfx and added unit tests for client

* feat: added docfx build in nox file

* feat: updated nox file for docs and docfx and added unit tests for client

* feat: added docfx build in nox file

* feat: adding unit tests for django spanner

* feat: updated nox file for docs and docfx and added unit tests for client

* feat: added docfx build in nox file

* feat: updated nox file for docs and docfx and added unit tests for client

* feat: added docfx build in nox file

* feat: updated nox file for docs and docfx and added unit tests for client

* feat: adding unit tests for django spanner

* bug: fixed schema tests settings to create instance and delete it after test completion

* bug: test fixes for schema file

* feat: added unit test coverage for functions, introspection and schema

* refactor: lint the code

* refactor: removed unrelated code from PR

* ci: added build for docfx and refactores settings for unit tests

* build: added python 3.9 in setup file

* refactor: changed coverage check to 65 from 68 to be conservative in the estimates

* fix: corrected test case for sql_flush for multiple delete table commands
googleapis/python-spanner-django,googleapis/python-spanner-django