EIV in multi-level model

Modeling
1

Would we be able to estimate an error-in-variables in the equivalent of multi-level model in brm?
Alternatively, we might be able to work with each level separately.
Here, Level 2 is in a repeated cross-sectional design in which samples
are drawn independently in each time period. This can be framed as a
panel by defining cohorts (eg., combinations of demographic variables
that are constant in their definition overtime period). Can brms handle
EIV in the equivalent of a multi-level analysis ?

2

brms seems to support measurement error for group-level terms, i.e. (extedning the example from https://rdrr.io/cran/brms/man/me.html):

N <- 100
dat <- data.frame(
  y = rnorm(N), x1 = rnorm(N), 
  x2 = rnorm(N), sdx = abs(rnorm(N, 1)),
  g = rep(c("a","b", length.out = N))
 )

fit1 <-brm(y ~ me(x1, sdx) + (me(x1, sdx)  || g)+ me(x2, sdx), data = dat, 
           save_mevars = TRUE)

Is that what you need? Or is “EIV” somehow different to what brms calls “measurement error”?