prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Deprecate falcon.api_helpers
  See https://github.com/falconry/falcon/issues/1902.
  
  Starting with 3.1, mark `falcon.api_helpers` as deprecated. We could employ module-level `__getattr__` or redecorate re-imported functions.
  
  </issue>
  <code>
  [start of falcon/api_helpers.py]
  1 from .app_helpers import *  # NOQA
  2 
  3 # TODO deprecate
  4 # import warnings
  5 # from .util.deprecation import DeprecatedWarning
  6 
  7 # warnings.warn('The api_helpers module was renamed to app_helpers.', DeprecatedWarning)
  8
  [end of falcon/api_helpers.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/falcon/api_helpers.py b/falcon/api_helpers.py
  --- a/falcon/api_helpers.py
  +++ b/falcon/api_helpers.py
  @@ -1,7 +1,6 @@
  -from .app_helpers import *  # NOQA
  +import warnings
   
  -# TODO deprecate
  -# import warnings
  -# from .util.deprecation import DeprecatedWarning
  +from .app_helpers import *  # NOQA
  +from .util.deprecation import DeprecatedWarning
   
  -# warnings.warn('The api_helpers module was renamed to app_helpers.', DeprecatedWarning)
  +warnings.warn('The api_helpers module was renamed to app_helpers.', DeprecatedWarning)
  
verification_info: {"golden_diff": "diff --git a/falcon/api_helpers.py b/falcon/api_helpers.py\n--- a/falcon/api_helpers.py\n+++ b/falcon/api_helpers.py\n@@ -1,7 +1,6 @@\n-from .app_helpers import *  # NOQA\n+import warnings\n \n-# TODO deprecate\n-# import warnings\n-# from .util.deprecation import DeprecatedWarning\n+from .app_helpers import *  # NOQA\n+from .util.deprecation import DeprecatedWarning\n \n-# warnings.warn('The api_helpers module was renamed to app_helpers.', DeprecatedWarning)\n+warnings.warn('The api_helpers module was renamed to app_helpers.', DeprecatedWarning)\n", "issue": "Deprecate falcon.api_helpers\nSee https://github.com/falconry/falcon/issues/1902.\r\n\r\nStarting with 3.1, mark `falcon.api_helpers` as deprecated. We could employ module-level `__getattr__` or redecorate re-imported functions.\n", "before_files": [{"content": "from .app_helpers import *  # NOQA\n\n# TODO deprecate\n# import warnings\n# from .util.deprecation import DeprecatedWarning\n\n# warnings.warn('The api_helpers module was renamed to app_helpers.', DeprecatedWarning)\n", "path": "falcon/api_helpers.py"}]}