Function read_bond_option 

pub(crate) fn read_bond_option<'a, 'd>(
    option: El<'a, 'd>,
    ctx: &Context<'_>,
) -> Result<Read<'a, 'd>, FpmlError>

Reads a bondOption: a European option on the master’s bond at the stated strike price, its quantity the stated notional over the bond’s face, its premium a fee.