FortiSwitch Cabling when connecting to 2 FortiGates in HA

[mumbles202]

How should the cabling be connected if I'm connecting my FortiSwitch to a pair of upstream FortiGates running in HA.  The switch is currently managed by the FortiGate and will be adding an HA unit so wanted to know how I should be connecting it to that unit.

[trump26901]

I'm also interested in this.

additional question.  is it different with A-P vs. A-A, and does it matter with or without MLAG?