We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
 _margv  for macros seems to be missing
At one point in time, arguments to macro's could be obtained from _margv , but this seems to be missing now ( https://github.com/ipython/ipython/wiki/Cookbook:-Macro-arguments ).  

I searched the entire ipython folder and only found _margv in the documentation in the macro.py file. 

Just wondering if this is still supported.  


--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `IPython/core/macro.py`
Content:
```
1 """Support for interactive macros in IPython"""
2 
3 #*****************************************************************************
4 #       Copyright (C) 2001-2005 Fernando Perez <fperez@colorado.edu>
5 #
6 #  Distributed under the terms of the BSD License.  The full license is in
7 #  the file COPYING, distributed as part of this software.
8 #*****************************************************************************
9 
10 import re
11 
12 from IPython.utils import py3compat
13 from IPython.utils.encoding import DEFAULT_ENCODING
14 
15 coding_declaration = re.compile(r"#\s*coding[:=]\s*([-\w.]+)")
16 
17 class Macro(object):
18     """Simple class to store the value of macros as strings.
19 
20     Macro is just a callable that executes a string of IPython
21     input when called.
22     
23     Args to macro are available in _margv list if you need them.
24     """
25 
26     def __init__(self,code):
27         """store the macro value, as a single string which can be executed"""
28         lines = []
29         enc = None
30         for line in code.splitlines():
31             coding_match = coding_declaration.match(line)
32             if coding_match:
33                 enc = coding_match.group(1)
34             else:
35                 lines.append(line)
36         code = "\n".join(lines)
37         if isinstance(code, bytes):
38             code = code.decode(enc or DEFAULT_ENCODING)
39         self.value = code + '\n'
40     
41     def __str__(self):
42         return py3compat.unicode_to_str(self.value)
43     
44     def __unicode__(self):
45         return self.value
46 
47     def __repr__(self):
48         return 'IPython.macro.Macro(%s)' % repr(self.value)
49     
50     def __getstate__(self):
51         """ needed for safe pickling via %store """
52         return {'value': self.value}
53     
54     def __add__(self, other):
55         if isinstance(other, Macro):
56             return Macro(self.value + other.value)
57         elif isinstance(other, basestring):
58             return Macro(self.value + other)
59         raise TypeError
60
```
--- 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/IPython/core/macro.py b/IPython/core/macro.py
--- a/IPython/core/macro.py
+++ b/IPython/core/macro.py
@@ -19,8 +19,6 @@
 
     Macro is just a callable that executes a string of IPython
     input when called.
-    
-    Args to macro are available in _margv list if you need them.
     """
 
     def __init__(self,code):

{"golden_diff": "diff --git a/IPython/core/macro.py b/IPython/core/macro.py\n--- a/IPython/core/macro.py\n+++ b/IPython/core/macro.py\n@@ -19,8 +19,6 @@\n \n     Macro is just a callable that executes a string of IPython\n     input when called.\n-    \n-    Args to macro are available in _margv list if you need them.\n     \"\"\"\n \n     def __init__(self,code):\n", "issue": " _margv  for macros seems to be missing\nAt one point in time, arguments to macro's could be obtained from _margv , but this seems to be missing now ( https://github.com/ipython/ipython/wiki/Cookbook:-Macro-arguments ).  \n\nI searched the entire ipython folder and only found _margv in the documentation in the macro.py file. \n\nJust wondering if this is still supported.  \n\n", "before_files": [{"content": "\"\"\"Support for interactive macros in IPython\"\"\"\n\n#*****************************************************************************\n#       Copyright (C) 2001-2005 Fernando Perez <fperez@colorado.edu>\n#\n#  Distributed under the terms of the BSD License.  The full license is in\n#  the file COPYING, distributed as part of this software.\n#*****************************************************************************\n\nimport re\n\nfrom IPython.utils import py3compat\nfrom IPython.utils.encoding import DEFAULT_ENCODING\n\ncoding_declaration = re.compile(r\"#\\s*coding[:=]\\s*([-\\w.]+)\")\n\nclass Macro(object):\n    \"\"\"Simple class to store the value of macros as strings.\n\n    Macro is just a callable that executes a string of IPython\n    input when called.\n    \n    Args to macro are available in _margv list if you need them.\n    \"\"\"\n\n    def __init__(self,code):\n        \"\"\"store the macro value, as a single string which can be executed\"\"\"\n        lines = []\n        enc = None\n        for line in code.splitlines():\n            coding_match = coding_declaration.match(line)\n            if coding_match:\n                enc = coding_match.group(1)\n            else:\n                lines.append(line)\n        code = \"\\n\".join(lines)\n        if isinstance(code, bytes):\n            code = code.decode(enc or DEFAULT_ENCODING)\n        self.value = code + '\\n'\n    \n    def __str__(self):\n        return py3compat.unicode_to_str(self.value)\n    \n    def __unicode__(self):\n        return self.value\n\n    def __repr__(self):\n        return 'IPython.macro.Macro(%s)' % repr(self.value)\n    \n    def __getstate__(self):\n        \"\"\" needed for safe pickling via %store \"\"\"\n        return {'value': self.value}\n    \n    def __add__(self, other):\n        if isinstance(other, Macro):\n            return Macro(self.value + other.value)\n        elif isinstance(other, basestring):\n            return Macro(self.value + other)\n        raise TypeError\n", "path": "IPython/core/macro.py"}], "after_files": [{"content": "\"\"\"Support for interactive macros in IPython\"\"\"\n\n#*****************************************************************************\n#       Copyright (C) 2001-2005 Fernando Perez <fperez@colorado.edu>\n#\n#  Distributed under the terms of the BSD License.  The full license is in\n#  the file COPYING, distributed as part of this software.\n#*****************************************************************************\n\nimport re\n\nfrom IPython.utils import py3compat\nfrom IPython.utils.encoding import DEFAULT_ENCODING\n\ncoding_declaration = re.compile(r\"#\\s*coding[:=]\\s*([-\\w.]+)\")\n\nclass Macro(object):\n    \"\"\"Simple class to store the value of macros as strings.\n\n    Macro is just a callable that executes a string of IPython\n    input when called.\n    \"\"\"\n\n    def __init__(self,code):\n        \"\"\"store the macro value, as a single string which can be executed\"\"\"\n        lines = []\n        enc = None\n        for line in code.splitlines():\n            coding_match = coding_declaration.match(line)\n            if coding_match:\n                enc = coding_match.group(1)\n            else:\n                lines.append(line)\n        code = \"\\n\".join(lines)\n        if isinstance(code, bytes):\n            code = code.decode(enc or DEFAULT_ENCODING)\n        self.value = code + '\\n'\n    \n    def __str__(self):\n        return py3compat.unicode_to_str(self.value)\n    \n    def __unicode__(self):\n        return self.value\n\n    def __repr__(self):\n        return 'IPython.macro.Macro(%s)' % repr(self.value)\n    \n    def __getstate__(self):\n        \"\"\" needed for safe pickling via %store \"\"\"\n        return {'value': self.value}\n    \n    def __add__(self, other):\n        if isinstance(other, Macro):\n            return Macro(self.value + other.value)\n        elif isinstance(other, basestring):\n            return Macro(self.value + other)\n        raise TypeError\n", "path": "IPython/core/macro.py"}]}