Purchases and orders

Product purchases

gps --package $PKG purchases product PRODUCT_ID TOKEN
gps --package $PKG purchases product-v2 PRODUCT_ID TOKEN
gps --package $PKG purchases ack-product PRODUCT_ID TOKEN --confirm
gps --package $PKG purchases consume PRODUCT_ID TOKEN --confirm

Subscriptions

gps --package $PKG purchases subscription TOKEN
gps --package $PKG purchases cancel-subscription SUBSCRIPTION_ID TOKEN --confirm
gps --package $PKG purchases revoke-subscription SUBSCRIPTION_ID TOKEN --confirm