Use case: find compounds with a certain MS2 peak about compounddb HOT 1 OPEN

library(CompoundDb)
sp1 <- new("Spectrum2", mz = c(23.231, 123.43, 255.231, 432.0952),
           intensity = c(123, 3432, 45432, 423))
sp2 <- new("Spectrum2", mz = c(123.099, 344.531, 453.2313),
           intensity = c(231, 431, 413))
sp3 <- new("Spectrum2", mz = c(123.1001, 343.4321, 432.0921),
           intensity = c(542, 4524, 32))
spl <- Spectra(sp1, sp2, sp3)

mzs <- c(123.1, 432.0931)

## Is any of the mzs present in a spectrum?
hasMz(spl, mzs)
[1]  TRUE FALSE  TRUE

## Is there any spectrum that contains peaks matching **all**  input m/z?
hasMz(spl, mzs, which = "all")
[1] FALSE FALSE  TRUE