# NOT RUN {
# Builds a procmod_frame with two random matrices
m1 <- simulate_matrix(10,20)
m2 <- simulate_matrix(10,30)
pmf <- procmod_frame(m1 = m1, m2 = m2)
# Returns TRUE
is_procmod_frame(pmf)
# Returns FALSE
is_procmod_frame(3)
# }
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