members/send_welcome_email

[members/send_welcome_email](https://www.dropbox.com/developers/documentation/http/teams#team-members-send_welcome_email) scope: `members.write` Sends welcome email to pending team member. Permission : Team member management Exactly one of team_member_id, email, or external_id must be provided to identify the user account. No-op if team member is not pending.