get-metadata-lines in drscheme:language:language<%>

• (send a-drscheme:language:language get-metadata-lines) -> number

  This method is only called when get-reader-module returns an sexp.

  The result of the method is a count of the number of lines in the strings that get-metadata returns. The get-metadata function does not necessarily return the same string each time it is called (see metadata->settings) but it is expected to always return a string with a fixed number of lines, as indicated by the result of this method.