Sets the permission for a specific function call.Each policy is represented as a mapping from an IP account address to a signer address to a recipient
address to a function selector to a permission level. The permission level can be 0 (ABSTAIN), 1 (ALLOW), or
2 (DENY).By default, all policies are set to 0 (ABSTAIN), which means that the permission is not set. The owner of IP Account by default has all permission.
Method
set_permission
Parameters:
ip_id: The IP ID that grants the permission for signer.
signer: The address that can call to on behalf of the ipAccount.
to: The address that can be called by the signer (currently only modules can be to)
permission: The new permission level.
func: [Optional] The function selector string of to that can be called by the signer on behalf of the ipAccount. By default, it allows all functions.