Function ckb_std::high_level::load_header_epoch_start_block_number

pub fn load_header_epoch_start_block_number(
    index: usize, 
    source: Source
) -> Result<u64, SysError>

Load header epoch start block number

Arguments

• index - index
• source - source

Example

let epoch_start_block_number = load_header_epoch_start_block_number(index, source).unwrap();