@check_for(Definition)<EOL><INDENT>def check_starts_with_this(self, function, docstring):<DEDENT>
if docstring:<EOL><INDENT>first_word = ast.literal_eval(docstring).split()[<NUM_LIT:0>]<EOL>if first_word.lower() == '<STR_LIT>':<EOL><INDENT>return violations.D404()<EOL><DEDENT><DEDENT>
D404: First word of the docstring should not be `This`.

        Docstrings should use short, simple language. They should not begin
        with "This class is [..]" or "This module contains [..]".