page 311, third paragraph after the code, line 3 : to instead of of ?
optionally specify the parameters to the method, and you must specify the return value to
-----> ^^
the method.
“the return value of the method” sounds better.
+++++ next paragraph, line 2 : methods should be singular, as in the third line (the type of the method)
arguments, the keys of which are the names of each parameter of the actual methods, and
-----> ^
+++++ third paragraph from bottom, first line : [after kwargs] of string should be of type String
In this snippet args is of type String, not an array of strings, and kwargs is also of string and
-----> ^^
So kwargs is also of type String.