I do not think so there is a blcli command to export and import authorization profile, However you can read from existing environment and create same authorization profile in another environment.
We didn't find any way to obtain (through blcli commands) the Authorization Profiles included in a Role, so we had to do part of the export manually.
Final process was:
Manually: list all the Authorizations Profiles
Scripted (blcli): list all the Authorizations for each Authorization Profile
Scripted (blcli): list all the Roles
Manually: list all the Authorization Profiles for each Role
Scripted (blcli): create all the Authorization Profiles manually exported from Pro and add in them all the Authorizations automatically exported from Pro
Scripted (blcli): create all the Roles automatically exported from Pro and add in them all the Authorization Profiles manually exported from Pro.
It would be great to have blcli commands that could automatice the list of Authorizations Profiles for each role.