Constant ENDER_PEARL_TICKET_TIMEOUT 

pub const ENDER_PEARL_TICKET_TIMEOUT: u32 = ENDER_PEARL_TICKET_TIMEOUT_TICKS; // 40u32

Lifetime, in ticks, of a thrown ender pearl’s chunk ticket (vanilla TicketType.ENDER_PEARL timeout). The pearl refreshes it every ENDER_PEARL_TICKET_TIMEOUT - 1 ticks while it flies.