Access control

The table below outlines the access control permissions for the Timelock contract:

Access	Role	Function name	Description
Governor	PROPOSER_ROLE	schedule	schedule a call to execute from timelock contract with delay (it can be governance contract)
Governor/Protocol Owner/Emergency Executor	CANCELLER_ROLE	cancel	cancel a scheduled action to be executed (it can be governance contract)
Anyone	EXECUTOR_ROLE	execute	execute a scheduled action that has passed it's delay (it can be governance contract)
Emergency Executor	EMERGENCY_GUARDIAN_ROLE	emergencyExecute/emergencyExecuteBatch	Executes a emergency transaction without requiring the standard proposal and delay mechanism.
Protocol Owner	TIMELOCK_ADMIN	grantRole	set Ececutor/Canceller/Proposers for the timelock contract