pub trait AllowTentativeWritesOption {
// Required method
fn allow_tentative_writes(&self) -> bool;
// Provided method
fn add_header(&self, builder: Builder) -> Builder { ... }
}
pub trait AllowTentativeWritesOption {
// Required method
fn allow_tentative_writes(&self) -> bool;
// Provided method
fn add_header(&self, builder: Builder) -> Builder { ... }
}