SDK passing page size as "None" if not set

[satterly]

Issue Summary

api_1 | 192.168.208.4 - - [19/Apr/2020 09:58:23] "GET /alert/0a4e3cdd-65c2-4e20-8d9e-678123fef2af/notes?page=1&page-size=None HTTP/1.1" 200 -

Environment

• OS: [eg. Linux, Mac, Windows]

• API version: [eg. 6.8.1]

• Deployment: [eg. Docker, Heroku, AWS, GCloud, self-hosted]

• For self-hosted, WSGI environment: [eg. nginx/uwsgi, apache/mod_wsgi]

• Database: [eg. MongoDB, Postgres]

• Server config:
  Auth enabled? Yes/No
  Auth provider? Google, GitHub, OpenID, Basic, LDAP, etc
  Customer views? Yes/No
  (or provide the /config endpoint output)

• web UI version: [eg. 6.8.1]

• CLI version: [eg. 6.8.1]

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....' or Run '...'
3. Scroll down to '....'
4. See error (include command output)

For web app issues, include any web browser JavaScript console errors.

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Additional context
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Failure to provide basic details about your specific environment make
it impossible to know if an issue has already been fixed, can delay a
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