We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Hook file for sqlalchemy misses hidden import "sqlalchemy.ext.baked"
The provided hook file for sqlalchemy doesn't seem to pick up the hidden import of "sqlalchemy.ext.baked".

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `PyInstaller/hooks/hook-sqlalchemy.py`
Content:
```
1 #-----------------------------------------------------------------------------
2 # Copyright (c) 2005-2020, PyInstaller Development Team.
3 #
4 # Distributed under the terms of the GNU General Public License (version 2
5 # or later) with exception for distributing the bootloader.
6 #
7 # The full license is in the file COPYING.txt, distributed with this software.
8 #
9 # SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)
10 #-----------------------------------------------------------------------------
11 
12 import re
13 from PyInstaller.utils.hooks import (
14     exec_statement, is_module_satisfies, logger)
15 from PyInstaller.compat import open_file, text_read_mode
16 from PyInstaller.lib.modulegraph.modulegraph import SourceModule
17 from PyInstaller.lib.modulegraph.util import guess_encoding
18 
19 # 'sqlalchemy.testing' causes bundling a lot of unnecessary modules.
20 excludedimports = ['sqlalchemy.testing']
21 
22 # include most common database bindings
23 # some database bindings are detected and include some
24 # are not. We should explicitly include database backends.
25 hiddenimports = ['pysqlite2', 'MySQLdb', 'psycopg2']
26 
27 # In SQLAlchemy >= 0.6, the "sqlalchemy.dialects" package provides dialects.
28 if is_module_satisfies('sqlalchemy >= 0.6'):
29     dialects = exec_statement("import sqlalchemy.dialects;print(sqlalchemy.dialects.__all__)")
30     dialects = eval(dialects.strip())
31 
32     for n in dialects:
33         hiddenimports.append("sqlalchemy.dialects." + n)
34 # In SQLAlchemy <= 0.5, the "sqlalchemy.databases" package provides dialects.
35 else:
36     databases = exec_statement("import sqlalchemy.databases; print(sqlalchemy.databases.__all__)")
37     databases = eval(databases.strip())
38 
39     for n in databases:
40         hiddenimports.append("sqlalchemy.databases." + n)
41 
42 
43 def hook(hook_api):
44     """
45     SQLAlchemy 0.9 introduced the decorator 'util.dependencies'.  This
46     decorator does imports.  eg:
47 
48             @util.dependencies("sqlalchemy.sql.schema")
49 
50     This hook scans for included SQLAlchemy modules and then scans those modules
51     for any util.dependencies and marks those modules as hidden imports.
52     """
53 
54     if not is_module_satisfies('sqlalchemy >= 0.9'):
55         return
56 
57     # this parser is very simplistic but seems to catch all cases as of V1.1
58     depend_regex = re.compile(r'@util.dependencies\([\'"](.*?)[\'"]\)')
59 
60     hidden_imports_set = set()
61     known_imports = set()
62     for node in hook_api.module_graph.flatten(start=hook_api.module):
63         if isinstance(node, SourceModule) and \
64                 node.identifier.startswith('sqlalchemy.'):
65             known_imports.add(node.identifier)
66             # Determine the encoding of the source file.
67             with open_file(node.filename, 'rb') as f:
68                 encoding = guess_encoding(f)
69             # Use that to open the file.
70             with open_file(node.filename, text_read_mode,
71                            encoding=encoding) as f:
72                 for match in depend_regex.findall(f.read()):
73                     hidden_imports_set.add(match)
74 
75     hidden_imports_set -= known_imports
76     if len(hidden_imports_set):
77         logger.info("  Found %d sqlalchemy hidden imports",
78                     len(hidden_imports_set))
79         hook_api.add_imports(*list(hidden_imports_set))
80
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/PyInstaller/hooks/hook-sqlalchemy.py b/PyInstaller/hooks/hook-sqlalchemy.py
--- a/PyInstaller/hooks/hook-sqlalchemy.py
+++ b/PyInstaller/hooks/hook-sqlalchemy.py
@@ -22,7 +22,7 @@
 # include most common database bindings
 # some database bindings are detected and include some
 # are not. We should explicitly include database backends.
-hiddenimports = ['pysqlite2', 'MySQLdb', 'psycopg2']
+hiddenimports = ['pysqlite2', 'MySQLdb', 'psycopg2', 'sqlalchemy.ext.baked']
 
 # In SQLAlchemy >= 0.6, the "sqlalchemy.dialects" package provides dialects.
 if is_module_satisfies('sqlalchemy >= 0.6'):

{"golden_diff": "diff --git a/PyInstaller/hooks/hook-sqlalchemy.py b/PyInstaller/hooks/hook-sqlalchemy.py\n--- a/PyInstaller/hooks/hook-sqlalchemy.py\n+++ b/PyInstaller/hooks/hook-sqlalchemy.py\n@@ -22,7 +22,7 @@\n # include most common database bindings\n # some database bindings are detected and include some\n # are not. We should explicitly include database backends.\n-hiddenimports = ['pysqlite2', 'MySQLdb', 'psycopg2']\n+hiddenimports = ['pysqlite2', 'MySQLdb', 'psycopg2', 'sqlalchemy.ext.baked']\n \n # In SQLAlchemy >= 0.6, the \"sqlalchemy.dialects\" package provides dialects.\n if is_module_satisfies('sqlalchemy >= 0.6'):\n", "issue": "Hook file for sqlalchemy misses hidden import \"sqlalchemy.ext.baked\"\nThe provided hook file for sqlalchemy doesn't seem to pick up the hidden import of \"sqlalchemy.ext.baked\".\n", "before_files": [{"content": "#-----------------------------------------------------------------------------\n# Copyright (c) 2005-2020, PyInstaller Development Team.\n#\n# Distributed under the terms of the GNU General Public License (version 2\n# or later) with exception for distributing the bootloader.\n#\n# The full license is in the file COPYING.txt, distributed with this software.\n#\n# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)\n#-----------------------------------------------------------------------------\n\nimport re\nfrom PyInstaller.utils.hooks import (\n    exec_statement, is_module_satisfies, logger)\nfrom PyInstaller.compat import open_file, text_read_mode\nfrom PyInstaller.lib.modulegraph.modulegraph import SourceModule\nfrom PyInstaller.lib.modulegraph.util import guess_encoding\n\n# 'sqlalchemy.testing' causes bundling a lot of unnecessary modules.\nexcludedimports = ['sqlalchemy.testing']\n\n# include most common database bindings\n# some database bindings are detected and include some\n# are not. We should explicitly include database backends.\nhiddenimports = ['pysqlite2', 'MySQLdb', 'psycopg2']\n\n# In SQLAlchemy >= 0.6, the \"sqlalchemy.dialects\" package provides dialects.\nif is_module_satisfies('sqlalchemy >= 0.6'):\n    dialects = exec_statement(\"import sqlalchemy.dialects;print(sqlalchemy.dialects.__all__)\")\n    dialects = eval(dialects.strip())\n\n    for n in dialects:\n        hiddenimports.append(\"sqlalchemy.dialects.\" + n)\n# In SQLAlchemy <= 0.5, the \"sqlalchemy.databases\" package provides dialects.\nelse:\n    databases = exec_statement(\"import sqlalchemy.databases; print(sqlalchemy.databases.__all__)\")\n    databases = eval(databases.strip())\n\n    for n in databases:\n        hiddenimports.append(\"sqlalchemy.databases.\" + n)\n\n\ndef hook(hook_api):\n    \"\"\"\n    SQLAlchemy 0.9 introduced the decorator 'util.dependencies'.  This\n    decorator does imports.  eg:\n\n            @util.dependencies(\"sqlalchemy.sql.schema\")\n\n    This hook scans for included SQLAlchemy modules and then scans those modules\n    for any util.dependencies and marks those modules as hidden imports.\n    \"\"\"\n\n    if not is_module_satisfies('sqlalchemy >= 0.9'):\n        return\n\n    # this parser is very simplistic but seems to catch all cases as of V1.1\n    depend_regex = re.compile(r'@util.dependencies\\([\\'\"](.*?)[\\'\"]\\)')\n\n    hidden_imports_set = set()\n    known_imports = set()\n    for node in hook_api.module_graph.flatten(start=hook_api.module):\n        if isinstance(node, SourceModule) and \\\n                node.identifier.startswith('sqlalchemy.'):\n            known_imports.add(node.identifier)\n            # Determine the encoding of the source file.\n            with open_file(node.filename, 'rb') as f:\n                encoding = guess_encoding(f)\n            # Use that to open the file.\n            with open_file(node.filename, text_read_mode,\n                           encoding=encoding) as f:\n                for match in depend_regex.findall(f.read()):\n                    hidden_imports_set.add(match)\n\n    hidden_imports_set -= known_imports\n    if len(hidden_imports_set):\n        logger.info(\"  Found %d sqlalchemy hidden imports\",\n                    len(hidden_imports_set))\n        hook_api.add_imports(*list(hidden_imports_set))\n", "path": "PyInstaller/hooks/hook-sqlalchemy.py"}], "after_files": [{"content": "#-----------------------------------------------------------------------------\n# Copyright (c) 2005-2020, PyInstaller Development Team.\n#\n# Distributed under the terms of the GNU General Public License (version 2\n# or later) with exception for distributing the bootloader.\n#\n# The full license is in the file COPYING.txt, distributed with this software.\n#\n# SPDX-License-Identifier: (GPL-2.0-or-later WITH Bootloader-exception)\n#-----------------------------------------------------------------------------\n\nimport re\nfrom PyInstaller.utils.hooks import (\n    exec_statement, is_module_satisfies, logger)\nfrom PyInstaller.compat import open_file, text_read_mode\nfrom PyInstaller.lib.modulegraph.modulegraph import SourceModule\nfrom PyInstaller.lib.modulegraph.util import guess_encoding\n\n# 'sqlalchemy.testing' causes bundling a lot of unnecessary modules.\nexcludedimports = ['sqlalchemy.testing']\n\n# include most common database bindings\n# some database bindings are detected and include some\n# are not. We should explicitly include database backends.\nhiddenimports = ['pysqlite2', 'MySQLdb', 'psycopg2', 'sqlalchemy.ext.baked']\n\n# In SQLAlchemy >= 0.6, the \"sqlalchemy.dialects\" package provides dialects.\nif is_module_satisfies('sqlalchemy >= 0.6'):\n    dialects = exec_statement(\"import sqlalchemy.dialects;print(sqlalchemy.dialects.__all__)\")\n    dialects = eval(dialects.strip())\n\n    for n in dialects:\n        hiddenimports.append(\"sqlalchemy.dialects.\" + n)\n# In SQLAlchemy <= 0.5, the \"sqlalchemy.databases\" package provides dialects.\nelse:\n    databases = exec_statement(\"import sqlalchemy.databases; print(sqlalchemy.databases.__all__)\")\n    databases = eval(databases.strip())\n\n    for n in databases:\n        hiddenimports.append(\"sqlalchemy.databases.\" + n)\n\n\ndef hook(hook_api):\n    \"\"\"\n    SQLAlchemy 0.9 introduced the decorator 'util.dependencies'.  This\n    decorator does imports.  eg:\n\n            @util.dependencies(\"sqlalchemy.sql.schema\")\n\n    This hook scans for included SQLAlchemy modules and then scans those modules\n    for any util.dependencies and marks those modules as hidden imports.\n    \"\"\"\n\n    if not is_module_satisfies('sqlalchemy >= 0.9'):\n        return\n\n    # this parser is very simplistic but seems to catch all cases as of V1.1\n    depend_regex = re.compile(r'@util.dependencies\\([\\'\"](.*?)[\\'\"]\\)')\n\n    hidden_imports_set = set()\n    known_imports = set()\n    for node in hook_api.module_graph.flatten(start=hook_api.module):\n        if isinstance(node, SourceModule) and \\\n                node.identifier.startswith('sqlalchemy.'):\n            known_imports.add(node.identifier)\n            # Determine the encoding of the source file.\n            with open_file(node.filename, 'rb') as f:\n                encoding = guess_encoding(f)\n            # Use that to open the file.\n            with open_file(node.filename, text_read_mode,\n                           encoding=encoding) as f:\n                for match in depend_regex.findall(f.read()):\n                    hidden_imports_set.add(match)\n\n    hidden_imports_set -= known_imports\n    if len(hidden_imports_set):\n        logger.info(\"  Found %d sqlalchemy hidden imports\",\n                    len(hidden_imports_set))\n        hook_api.add_imports(*list(hidden_imports_set))\n", "path": "PyInstaller/hooks/hook-sqlalchemy.py"}]}