Function get_ec_double_air 

pub fn get_ec_double_air<const BLOCKS: usize, const BLOCK_SIZE: usize>(
    exec_bridge: ExecutionBridge,
    mem_bridge: MemoryBridge,
    config: ExprBuilderConfig,
    range_checker_bus: VariableRangeCheckerBus,
    bitwise_lookup_bus: BitwiseOperationLookupBus,
    pointer_max_bits: usize,
    offset: usize,
    a_biguint: BigUint,
) -> WeierstrassAir<1, BLOCKS, BLOCK_SIZE>