Returns memory allocation aggregated by function name.
Examples
p <- pv_example()
pv_memory(p)
#> label mem_mb
#> 1 rnorm 1.3752670
#> 2 x[i] <- rnorm(1) 1.2550430
#> 3 generate_data 0.5630035
#> 4 result[i] <- sqrt(abs(x[i])) * 2 0.3564835
