exportPattern("^[[:alpha:]]+")
exportMethods(
    "[",
    "array",
    "as.character",
    "as.Date",
    "as.numeric",
    "as.POSIXct",
    "as.POSIXlt",
    "c",
    "day",
    "matrix",
    "mean",
    "mondate",
    "month",
    "print",
    "rep",
    "show",
    "unique",
    "year" 
)
exportClasses(
    "mondate" 
)
S3method(as.data.frame, mondate)
S3method(format, mondate)
S3method(cbind, mondate)
S3method(rbind, mondate)
S3method(seq, mondate)
