library_call_syscall

Calls the requested function in any previously declared class. class_hash - The hash of the class you want to use. function_selector - A selector for a function within that class. calldata - Call arguments.

Fully qualified path: core::starknet::syscalls::library_call_syscall

pub extern fn library_call_syscall(
    class_hash: ClassHash, function_selector: felt252, calldata: Span<felt252>,
) -> SyscallResult<Span<felt252>> implicits(GasBuiltin, System) nopanic;