prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  BUG: too many clients
  ### Describe the bug
  When running the model_ref.generate() function in iPython, there seems to be a client created for every word generation, eventually leading to the following error:
  
  `gaierror: [Errno 8] nodename nor servname provided, or not known`
  
  ### To Reproduce
  
  `python -m plexar.deploy.cmdline supervisor -a localhost:9999 --log-level debug`
  
  `python -m plexar.deploy.cmdline worker --supervisor-address localhost:9999 -a localhost:10000 --log-level debug`
  
  ```
  import sys
  from plexar.client import Client
  client = Client("localhost:9999")
  model_uid = client.launch_model("wizardlm-v1.0",7,"ggmlv3","q4_0")
  model_ref = client.get_model(model_uid)
  
  
  async for c in await model_ref.generate("Once upon a time, there was a very old computer.", {'max_tokens': 512}): sys.stdout.write(c['choices'][0]['text'])
  ```
  
  ### Expected behavior
  First the warnings are printed: `Actor caller has created too many clients ([some number] >= 100), the global router may not be set.`
  
  Then we have the gaierror after the `[some number]` exceeds 240.
  
  </issue>
  <code>
  [start of plexar/__init__.py]
  1 # Copyright 2022-2023 XProbe Inc.
  2 #
  3 # Licensed under the Apache License, Version 2.0 (the "License");
  4 # you may not use this file except in compliance with the License.
  5 # You may obtain a copy of the License at
  6 #
  7 #      http://www.apache.org/licenses/LICENSE-2.0
  8 #
  9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14 
  15 
  16 from . import _version
  17 
  18 __version__ = _version.get_versions()["version"]
  19 
  20 
  21 def install():
  22     from .model import install as install_model
  23 
  24     install_model()
  25 
  26 
  27 install()
  28 del install
  29
  [end of plexar/__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/plexar/__init__.py b/plexar/__init__.py
  --- a/plexar/__init__.py
  +++ b/plexar/__init__.py
  @@ -19,8 +19,12 @@
   
   
   def install():
  +    from xoscar.backends.router import Router
  +
       from .model import install as install_model
   
  +    default_router = Router.get_instance_or_empty()
  +    Router.set_instance(default_router)
       install_model()
  
verification_info: {"golden_diff": "diff --git a/plexar/__init__.py b/plexar/__init__.py\n--- a/plexar/__init__.py\n+++ b/plexar/__init__.py\n@@ -19,8 +19,12 @@\n \n \n def install():\n+    from xoscar.backends.router import Router\n+\n     from .model import install as install_model\n \n+    default_router = Router.get_instance_or_empty()\n+    Router.set_instance(default_router)\n     install_model()\n", "issue": "BUG: too many clients\n### Describe the bug\r\nWhen running the model_ref.generate() function in iPython, there seems to be a client created for every word generation, eventually leading to the following error:\r\n\r\n`gaierror: [Errno 8] nodename nor servname provided, or not known`\r\n\r\n### To Reproduce\r\n\r\n`python -m plexar.deploy.cmdline supervisor -a localhost:9999 --log-level debug`\r\n\r\n`python -m plexar.deploy.cmdline worker --supervisor-address localhost:9999 -a localhost:10000 --log-level debug`\r\n\r\n```\r\nimport sys\r\nfrom plexar.client import Client\r\nclient = Client(\"localhost:9999\")\r\nmodel_uid = client.launch_model(\"wizardlm-v1.0\",7,\"ggmlv3\",\"q4_0\")\r\nmodel_ref = client.get_model(model_uid)\r\n\r\n\r\nasync for c in await model_ref.generate(\"Once upon a time, there was a very old computer.\", {'max_tokens': 512}): sys.stdout.write(c['choices'][0]['text'])\r\n```\r\n\r\n### Expected behavior\r\nFirst the warnings are printed: `Actor caller has created too many clients ([some number] >= 100), the global router may not be set.`\r\n\r\nThen we have the gaierror after the `[some number]` exceeds 240.\n", "before_files": [{"content": "# Copyright 2022-2023 XProbe Inc.\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n#      http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\n\nfrom . import _version\n\n__version__ = _version.get_versions()[\"version\"]\n\n\ndef install():\n    from .model import install as install_model\n\n    install_model()\n\n\ninstall()\ndel install\n", "path": "plexar/__init__.py"}]}