parameters: (s, chars=None)
return_statement: return s.strip(chars)
docstring: strip(s [,chars]) -> string
  
      Return a copy of the string s with leading and trailing
      whitespace removed.
      If chars is given and not None, remove characters in chars instead.
      If chars is unicode, S will be converted to unicode before stripping.
docstring_summary: strip(s [,chars]) -> string
docstring_tokens: strip ( s [ chars ] ) - > string
function: def strip(s, chars=None):
      """strip(s [,chars]) -> string
  
      Return a copy of the string s with leading and trailing
      whitespace removed.
      If chars is given and not None, remove characters in chars instead.
      If chars is unicode, S will be converted to unicode before stripping.
  
      """
      return s.strip(chars)
function_tokens: def strip ( s , chars = None ) : return s . strip ( chars )