CssSection 
  constructor(file: <Error class: unknown class>? = null, start: CssLocation, end: CssLocation)(source)
Creates a new GtkCssSection referring to the section in the given file from the start location to the end location.
Return
a new GtkCssSection
Parameters
file
The file this section refers to
start
The start location
end
The end location
constructor(gtkCssSectionPointer: <Error class: unknown class><<Error class: unknown class>>)(source)