README.rdoc in csv_pirate-4.1.4 vs README.rdoc in csv_pirate-5.0.0

@@ -200,11 +200,11 @@
 
                         # Must provide :swag or :grub (not both)
                         :swag           => nil                  # Array of objects: to use to create the CSV (i.e. you've already done the query and have the results you want a CSV of)
                         :grub           => Make                 # Class:  on which to call the method chain in :spyglasses that will return the array of objects to be placed in :swag by CsvPirate (See description of swag above).
                         :spyglasses     => [:all]               # Array of symbols/strings: Methods that will be chained together and called on :grub in order to get the :swag records which will become the rows of the CSV.
-                        :booty          => Make.column_names    # Array of symbols/strings or nested hashes of symbols/strings: Methods to call on each object in :swag.  These become the columns of the CSV.  The method names become the CSV column headings.  Methods can be chained to dig deep (e.g. traverse several ActiveRecord associations) to get at a value for the CSV.
+                        :booty          => Make.column_names    # Array of symbols/strings or nested hashes of symbols/strings: Methods to call on each object in :swag.  These become the columns of the CSV.  The method names become the CSV column headings.  Methods can be chained to dig deep (e.g. traverse several ActiveRecord associations) to get at a value for the CSV. To call instance methods that include arguments, pass a booty element of an array such as [:method_name, arg1, arg2...].
 
                         :swab           => :counter             # Symbol: What kind of file counter to use to avoid overwtiting the CSV file, :counter is Integer, :timestamp is HHMMSS, :none is no file counter, increasing the liklihood of duplicate filenames on successive csv exports.
                         :mop            => :clean               # Symbol: If we DO end up writing to a preexisting file (by design or accident) should we overwrite (:clean) or append (:dirty)?
                         :shrouds        => ','                  # String: Delimiter for CSV.  '\t' will create a tab delimited file (tsv), '|' will create a pipe delimited file.
                         :bury_treasure  => true                 # Boolean: Should the array of objects in :swag be stored in the CsvPirate object for later inspection?
@@ -278,9 +278,12 @@
 
 If you want to traverse Active Record Associations, or call a method on the return value of another method (unlimited nesting):
 
   Make.walk_the_plank({:booty => [:id, :name, :to_slug, {:to_slug => :hash}]})  #will call .hash on the result of make.to_slug
   Make.walk_the_plank({:booty => [:id, :name, :to_slug, {:to_slug => {:hash => :abs}}]})  #returns make.to_slug.hash.abs
+
+If you want to build your booty using instance functions that require arguments, use an array:
+  Make.walk_the_plank({:booty => [:id, :name, [:value_on, Date.today]})  # will call make.value_on(Date.today)
 
 Add whatever methods you want to the :booty array.  Write new methods, and add them!  Make lots of glorious CSVs full of data to impress the pointy ones in the office.
 
 You can also use the raw CsvPirate class itself directly wherever you want.