whole_func_string: function getRawHeader(_block) {
    if (typeof _block.difficulty !== 'string') {
      _block.difficulty = '0x' + _block.difficulty.toString(16)
    }
  
    const block = new EthereumBlock(_block)
    return block.header
  }
func_code_string: function getRawHeader(_block) {
    if (typeof _block.difficulty !== 'string') {
      _block.difficulty = '0x' + _block.difficulty.toString(16)
    }
  
    const block = new EthereumBlock(_block)
    return block.header
  }
func_documentation_string: Helper methods  raw header