it's already implied that you're using load testing settings.

not common.  This ensures that we load the MITX_FEATURES
token BEFORE deciding to disable CSRF.

This makes the LMS use an XBlock's student_view, rather than an
XModule's get_html to render for display. However, it does not yet use
wrap_child to handle instructor debug information or url rewriting.

[LMS-219]

so it can be used to generate unsubscribe tokens

This is achieved by allowing access if settings.DEBUG is True and
settings.EDX_API_KEY is not set or None (which is true for dev.py)

Embedded discussion component defaults to "Discussion"
Blank HTML page defaults to "Text"
Video component defaults to "Video"

These default names show up in tooltips.