class_docstr: Checker for PEP 257, NumPy and Google conventions.
  
  D10x: Missing docstrings
  D20x: Whitespace issues
  D30x: Docstring formatting
  D40x: Docstring content issues
class_docstr_tok: ["Checker","for","PEP","257",",","NumPy","and","Google","conventions",".","D10x",":","Missing","docstrings","D20x",":","Whitespace","issues","D30x",":","Docstring","formatting","D40x",":","Docstring","content","issues"]
docstr: D415: should end with proper punctuation.
  
  The [first line of a] docstring is a phrase ending in a period,
  question mark, or exclamation point
docstr_tok: ["D415",":","should","end","with","proper","punctuation",".","The","[","first","line","of","a","]","docstring","is","a","phrase","ending","in","a","period",",","question","mark",",","or","exclamation","point"]
code: def check_ends_with_punctuation(self, definition, docstring):
      """D415: should end with proper punctuation.
  
      The [first line of a] docstring is a phrase ending in a period,
      question mark, or exclamation point
  
      """
      return self._check_ends_with(
          docstring, (".", "!", "?"), violations.D415
      )
  
imports: import ast
  import string
  import tokenize
  from collections import namedtuple
  from itertools import chain, takewhile
  from re import compile
  from textwrap import dedent
  from .None import violations
  from .config import IllegalConfiguration
  from .parser import AllError, Class, Definition, Function, Method, Module, NestedClass, NestedFunction, Package, ParseError, Parser, StringIO
  from .utils import common_prefix_length, is_blank, log, pairwise, strip_non_alphanumeric
  from .wordlists import IMPERATIVE_BLACKLIST, IMPERATIVE_VERBS, stem
label_desc: Use image node_id 18 for calling the ConventionChecker obj's underlying member method code with example usage: obj.check_ends_with_punctuation(definition, docstring) and returns: self