Timing Constraint for modules

Don't know if this is still relevant, but I have a suggestion I have been using a few times:

###############################################################################
# Module constraint file (.sdc)
###############################################################################

# Get all instances
set inst_list [get_entity_instances -nowarn <module_name>]

# Run for each instance
foreach each_inst $inst_list {
  # Add your constraints here using $each_inst in the path
  # Eg.: set ref_clk [get_pins -compatibility_mode $each_inst|<pll_inst_name>|*|core_refclk]
}

Kind Regards,

Rasmus