text: #!/usr/bin/env python3
  import asyncio
  import sys
  
  from third_party import X, Y, Z
  
  from library import some_connection, \
                      some_decorator
  # fmt: off
  from third_party import (X,
                           Y, Z)
  # fmt: on
  f'trigger 3.6 mode'
  # fmt: off
  def func_no_args():
    a; b; c
    if True: raise RuntimeError
    if False: ...
    for i in range(10):
      print(i)
      continue
    exec('new-style exec', {}, {})
    return None
  async def coroutine(arg, exec=False):
   'Single-line docstring. Multiline is harder to reformat.'
   async with some_connection() as conn:
       await conn.do_what_i_mean('SELECT bobby, tables FROM xkcd', timeout=2)
   await asyncio.sleep(1)
  @asyncio.coroutine
  @some_decorator(
  with_args=True,
  many_args=[1,2,3]
  )
  def function_signature_stress_test(number:int,no_annotation=None,text:str='default',* ,debug:bool=False,**kwargs) -> str:
   return text[number:-1]
  # fmt: on
  def spaces(a=1, b=(), c=[], d={}, e=True, f=-1, g=1 if False else 2, h="", i=r''):
   offset = attr.ib(default=attr.Factory( lambda: _r.uniform(10000, 200000)))
   assert task._cancel_stack[:len(old_stack)] == old_stack
  def spaces_types(a: int = 1, b: tuple = (), c: list = [], d: dict = {}, e: bool = True, f: int = -1, g: int = 1 if False else 2, h: str = "", i: str = r''): ...
  def spaces2(result= _core.Value(None)):
   ...
  def example(session):
      # fmt: off
      result = session\
          .query(models.Customer.id)\
          .filter(models.Customer.account_id == account_id,
                  models.Customer.email == email_address)\
          .order_by(models.Customer.id.asc())\
          .all()
      # fmt: on
  def long_lines():
      if True:
          typedargslist.extend(
              gen_annotated_params(ast_args.kwonlyargs, ast_args.kw_defaults, parameters, implicit_default=True)
          )
          # fmt: off
          a = (
              unnecessary_bracket()
          )
          # fmt: on
      _type_comment_re = re.compile(
          r"""
          ^
          [\t ]*
          \#[ ]type:[ ]*
          (?P<type>
              [^#\t\n]+?
          )
          (?<!ignore)     # note: this will force the non-greedy + in <type> to match
                          # a trailing space which is why we need the silliness below
          (?<!ignore[ ]{1})(?<!ignore[ ]{2})(?<!ignore[ ]{3})(?<!ignore[ ]{4})
          (?<!ignore[ ]{5})(?<!ignore[ ]{6})(?<!ignore[ ]{7})(?<!ignore[ ]{8})
          (?<!ignore[ ]{9})(?<!ignore[ ]{10})
          [\t ]*
          (?P<nl>
              (?:\#[^\n]*)?
              \n?
          )
          $
          """, # fmt: off
          re.MULTILINE | re.VERBOSE
      )
      # fmt: on
  def single_literal_yapf_disable():
      """Black does not support this."""
      BAZ = {
          (1, 2, 3, 4),
          (5, 6, 7, 8),
          (9, 10, 11, 12),
      }  # yapf: disable
  # fmt: off
  # No formatting to the end of the file
  l=[1,2,3]
  d={'a':1,
     'b':2}
  
  # output
  
  
  #!/usr/bin/env python3
  import asyncio
  import sys
  
  from third_party import X, Y, Z
  
  from library import some_connection, some_decorator
  
  # fmt: off
  from third_party import (X,
                           Y, Z)
  # fmt: on
  f"trigger 3.6 mode"
  # fmt: off
  def func_no_args():
    a; b; c
    if True: raise RuntimeError
    if False: ...
    for i in range(10):
      print(i)
      continue
    exec('new-style exec', {}, {})
    return None
  async def coroutine(arg, exec=False):
   'Single-line docstring. Multiline is harder to reformat.'
   async with some_connection() as conn:
       await conn.do_what_i_mean('SELECT bobby, tables FROM xkcd', timeout=2)
   await asyncio.sleep(1)
  @asyncio.coroutine
  @some_decorator(
  with_args=True,
  many_args=[1,2,3]
  )
  def function_signature_stress_test(number:int,no_annotation=None,text:str='default',* ,debug:bool=False,**kwargs) -> str:
   return text[number:-1]
  # fmt: on
  def spaces(a=1, b=(), c=[], d={}, e=True, f=-1, g=1 if False else 2, h="", i=r""):
      offset = attr.ib(default=attr.Factory(lambda: _r.uniform(10000, 200000)))
      assert task._cancel_stack[: len(old_stack)] == old_stack
  
  
  def spaces_types(
      a: int = 1,
      b: tuple = (),
      c: list = [],
      d: dict = {},
      e: bool = True,
      f: int = -1,
      g: int = 1 if False else 2,
      h: str = "",
      i: str = r"",
  ):
      ...
  
  
  def spaces2(result=_core.Value(None)):
      ...
  
  
  def example(session):
      # fmt: off
      result = session\
          .query(models.Customer.id)\
          .filter(models.Customer.account_id == account_id,
                  models.Customer.email == email_address)\
          .order_by(models.Customer.id.asc())\
          .all()
      # fmt: on
  
  
  def long_lines():
      if True:
          typedargslist.extend(
              gen_annotated_params(
                  ast_args.kwonlyargs,
                  ast_args.kw_defaults,
                  parameters,
                  implicit_default=True,
              )
          )
          # fmt: off
          a = (
              unnecessary_bracket()
          )
          # fmt: on
      _type_comment_re = re.compile(
          r"""
          ^
          [\t ]*
          \#[ ]type:[ ]*
          (?P<type>
              [^#\t\n]+?
          )
          (?<!ignore)     # note: this will force the non-greedy + in <type> to match
                          # a trailing space which is why we need the silliness below
          (?<!ignore[ ]{1})(?<!ignore[ ]{2})(?<!ignore[ ]{3})(?<!ignore[ ]{4})
          (?<!ignore[ ]{5})(?<!ignore[ ]{6})(?<!ignore[ ]{7})(?<!ignore[ ]{8})
          (?<!ignore[ ]{9})(?<!ignore[ ]{10})
          [\t ]*
          (?P<nl>
              (?:\#[^\n]*)?
              \n?
          )
          $
          """,  # fmt: off
          re.MULTILINE | re.VERBOSE,
      )
      # fmt: on
  
  
  def single_literal_yapf_disable():
      """Black does not support this."""
      BAZ = {(1, 2, 3, 4), (5, 6, 7, 8), (9, 10, 11, 12)}  # yapf: disable
  
  
  # fmt: off
  # No formatting to the end of the file
  l=[1,2,3]
  d={'a':1,
     'b':2}
  