prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Accessor not available in dataset
  I fetched the latest updates after the lazy_loading PR and ran pytest and am seeing a lot of errors with accessors not loading.  Clean, QCFilter, and QCTests are no longer available in the datasets for some reason.
  
  FAILED test_io.py::test_io_mfdataset - AttributeError: 'Dataset' object has no attribute 'clean'
  FAILED test_io.py::test_io_write - AttributeError: 'Dataset' object has no attribute 'clean'
  FAILED test_io.py::test_clean_cf_qc - AttributeError: 'Dataset' object has no attribute 'clean'
  
  </issue>
  <code>
  [start of act/qc/__init__.py]
  1 """
  2 This module contains procedures for working with QC information
  3 and for applying tests to data.
  4 
  5 """
  6 
  7 import lazy_loader as lazy
  8 
  9 # We need to import clean first to register the accessor
  10 from .clean import *
  11 
  12 __getattr__, __dir__, __all__ = lazy.attach(
  13     __name__,
  14     submodules=[
  15         'add_supplemental_qc',
  16         'arm',
  17         'bsrn_tests',
  18         'comparison_tests',
  19         'qcfilter',
  20         'qctests',
  21         'radiometer_tests',
  22         'sp2',
  23     ],
  24     submod_attrs={
  25         'arm': ['add_dqr_to_qc'],
  26         'qcfilter': ['QCFilter'],
  27         'qctests': ['QCTests'],
  28         'radiometer_tests': ['fft_shading_test'],
  29         'bsrn_tests': ['QCTests'],
  30         'comparison_tests': ['QCTests'],
  31         'add_supplemental_qc': ['read_yaml_supplemental_qc'],
  32         'sp2': ['SP2ParticleCriteria', 'get_waveform_statistics'],
  33     },
  34 )
  35
  [end of act/qc/__init__.py]
  [start of act/__init__.py]
  1 """
  2 ACT: The Atmospheric Community Toolkit
  3 ======================================
  4 
  5 """
  6 
  7 import lazy_loader as lazy
  8 # No more pandas warnings
  9 from pandas.plotting import register_matplotlib_converters
  10 
  11 from . import tests
  12 from ._version import get_versions
  13 
  14 register_matplotlib_converters()
  15 
  16 # Import the lazy loaded modules
  17 submodules = [
  18     'corrections',
  19     'discovery',
  20     'io',
  21     'qc',
  22     'utils',
  23     'retrievals',
  24     'plotting',
  25 ]
  26 __getattr__, __dir__, _ = lazy.attach(__name__, submodules)
  27 
  28 # Version for source builds
  29 vdict = get_versions()
  30 __version__ = vdict['version']
  31
  [end of act/__init__.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/act/__init__.py b/act/__init__.py
  --- a/act/__init__.py
  +++ b/act/__init__.py
  @@ -5,11 +5,13 @@
   """
   
   import lazy_loader as lazy
  +
   # No more pandas warnings
   from pandas.plotting import register_matplotlib_converters
   
   from . import tests
   from ._version import get_versions
  +from .qc import QCFilter, QCTests, clean
   
   register_matplotlib_converters()
   
  diff --git a/act/qc/__init__.py b/act/qc/__init__.py
  --- a/act/qc/__init__.py
  +++ b/act/qc/__init__.py
  @@ -8,6 +8,8 @@
   
   # We need to import clean first to register the accessor
   from .clean import *
  +from .qcfilter import QCFilter
  +from .qctests import QCTests
   
   __getattr__, __dir__, __all__ = lazy.attach(
       __name__,
  
verification_info: {"golden_diff": "diff --git a/act/__init__.py b/act/__init__.py\n--- a/act/__init__.py\n+++ b/act/__init__.py\n@@ -5,11 +5,13 @@\n \"\"\"\n \n import lazy_loader as lazy\n+\n # No more pandas warnings\n from pandas.plotting import register_matplotlib_converters\n \n from . import tests\n from ._version import get_versions\n+from .qc import QCFilter, QCTests, clean\n \n register_matplotlib_converters()\n \ndiff --git a/act/qc/__init__.py b/act/qc/__init__.py\n--- a/act/qc/__init__.py\n+++ b/act/qc/__init__.py\n@@ -8,6 +8,8 @@\n \n # We need to import clean first to register the accessor\n from .clean import *\n+from .qcfilter import QCFilter\n+from .qctests import QCTests\n \n __getattr__, __dir__, __all__ = lazy.attach(\n     __name__,\n", "issue": "Accessor not available in dataset\nI fetched the latest updates after the lazy_loading PR and ran pytest and am seeing a lot of errors with accessors not loading.  Clean, QCFilter, and QCTests are no longer available in the datasets for some reason.\r\n\r\nFAILED test_io.py::test_io_mfdataset - AttributeError: 'Dataset' object has no attribute 'clean'\r\nFAILED test_io.py::test_io_write - AttributeError: 'Dataset' object has no attribute 'clean'\r\nFAILED test_io.py::test_clean_cf_qc - AttributeError: 'Dataset' object has no attribute 'clean'\n", "before_files": [{"content": "\"\"\"\nThis module contains procedures for working with QC information\nand for applying tests to data.\n\n\"\"\"\n\nimport lazy_loader as lazy\n\n# We need to import clean first to register the accessor\nfrom .clean import *\n\n__getattr__, __dir__, __all__ = lazy.attach(\n    __name__,\n    submodules=[\n        'add_supplemental_qc',\n        'arm',\n        'bsrn_tests',\n        'comparison_tests',\n        'qcfilter',\n        'qctests',\n        'radiometer_tests',\n        'sp2',\n    ],\n    submod_attrs={\n        'arm': ['add_dqr_to_qc'],\n        'qcfilter': ['QCFilter'],\n        'qctests': ['QCTests'],\n        'radiometer_tests': ['fft_shading_test'],\n        'bsrn_tests': ['QCTests'],\n        'comparison_tests': ['QCTests'],\n        'add_supplemental_qc': ['read_yaml_supplemental_qc'],\n        'sp2': ['SP2ParticleCriteria', 'get_waveform_statistics'],\n    },\n)\n", "path": "act/qc/__init__.py"}, {"content": "\"\"\"\nACT: The Atmospheric Community Toolkit\n======================================\n\n\"\"\"\n\nimport lazy_loader as lazy\n# No more pandas warnings\nfrom pandas.plotting import register_matplotlib_converters\n\nfrom . import tests\nfrom ._version import get_versions\n\nregister_matplotlib_converters()\n\n# Import the lazy loaded modules\nsubmodules = [\n    'corrections',\n    'discovery',\n    'io',\n    'qc',\n    'utils',\n    'retrievals',\n    'plotting',\n]\n__getattr__, __dir__, _ = lazy.attach(__name__, submodules)\n\n# Version for source builds\nvdict = get_versions()\n__version__ = vdict['version']\n", "path": "act/__init__.py"}]}