emulation/emulation.go
func (p *SetPageScaleFactorParams) Do(ctx context.Context) (err error) {
	return cdp.Execute(ctx, CommandSetPageScaleFactor, p, nil)
}
func (p *SetPageScaleFactorParams) Do(ctx context.Context) (err error) {
	return cdp.Execute(ctx, CommandSetPageScaleFactor, p, nil)
}
// Do executes Emulation.setPageScaleFactor against the provided context.