Reads the email draft out of an approval request's Comments. Returns null when the comments are
empty, not JSON, or not an email (a call brief, say), so callers can show the draft only when
there is one. An older payload without Operation counts as a Send when To and Subject exist.
Reads the email draft out of an approval request's Comments. Returns null when the comments are empty, not JSON, or not an email (a call brief, say), so callers can show the draft only when there is one. An older payload without
Operationcounts as aSendwhen To and Subject exist.