$success
[1] 0

$message
$message$message
[1] "be"                    "type \"integer-like\"" "is"                   
[4] "\"character\""        

$message$wrap
$message$wrap[[1]]
dimnames(NULL)[[1]]

$message$wrap[[2]]
$message$wrap[[2]][[1]]
NULL




$df
[1] 0

$lvl
[1] 0

$success
[1] 0

$message
$message$message
[1] "be"                 "type \"character\"" "is"                
[4] "\"integer\""       

$message$wrap
$message$wrap[[1]]
dimnames(NULL)[[1]]

$message$wrap[[2]]
$message$wrap[[2]][[1]]
NULL




$df
[1] 0

$lvl
[1] 0

$success
[1] 0

$message
$message$message
[1] "be"            "type \"list\"" "is"            "\"character\""

$message$wrap
$message$wrap[[1]]
dimnames(NULL)

$message$wrap[[2]]
$message$wrap[[2]][[1]]
NULL




$df
[1] 0

$lvl
[1] 0

$success
[1] 0

$message
$message$message
[1] "not be"  "missing" ""        ""       

$message$wrap
$message$wrap[[1]]
attr(dimnames(NULL), "bar")

$message$wrap[[2]]
$message$wrap[[2]][[1]]
[1] "bar"




$df
[1] 0

$lvl
[1] 0

# dimanames with attributes other than names that are not alike

$success
[1] 0

$message
$message$message
[1] "be" "2"  "is" "3" 

$message$wrap
$message$wrap[[1]]
length(attr(dimnames(NULL), "a"))

$message$wrap[[2]]
$message$wrap[[2]][[1]]
[1] "a"




$df
[1] 0

$lvl
[1] 0

$success
[1] 0

$message
$message$message
[1] "be" "1"  "is" "2" 

$message$wrap
$message$wrap[[1]]
length(dimnames(NULL))

$message$wrap[[2]]
$message$wrap[[2]][[1]]
NULL




$df
[1] 0

$lvl
[1] 0

$success
[1] 0

$message
$message$message
[1] "be"         "\"matrix\"" "is"         "\"array\"" 

$message$wrap
$message$wrap[[1]]
NULL

$message$wrap[[2]]
NULL



$df
[1] 0

$lvl
[1] 1

$success
[1] 0

$message
$message$message
[1] "have"         "3 dimensions" "has"          "4"           

$message$wrap
$message$wrap[[1]]
NULL

$message$wrap[[2]]
NULL



$df
[1] 0

$lvl
[1] 0

$success
[1] 0

$message
$message$message
[1] "have"   "2 rows" "has"    "1"     

$message$wrap
$message$wrap[[1]]
NULL

$message$wrap[[2]]
NULL



$df
[1] 0

$lvl
[1] 0