[BUG] python-aiohttp incorrect defaults with large integers

Bug Report Checklist

• Have you provided a full/minimal spec to reproduce the issue?
• Have you validated the input using an OpenAPI validator (example)?
• Have you tested with the latest master to confirm the issue still exists?
• Have you searched for related issues/PRs?
• What's the actual output vs expected output?
• [Optional] Sponsorship to speed up the bug fix or feature request (example)

Description

If the default integer value is too high, namely above INT32_MAX (i.e. 2^31 - 1) the python-aiohttp generator produces a constructor with an incorrect, None signature. For values below 2^31 it works fine, the default is respected.

Specifying format: int64 doesn't help.

Example:
with this object:

    Memory:
      type: object
      properties:
        ram_installed:
          type: "integer"
          default: 2147483647

the generated c-tor signature in openapi_server/models/memory.py is:

    def __init__(self, ram_installed: int=2147483647):

Bug:
with this object:

    Memory:
      type: object
      properties:
        ram_installed:
          type: "integer"
          default: 2147483648

the generated c-tor signature in openapi_server/models/memory.py is:

    def __init__(self, ram_installed: int=None):

openapi-generator version

openapi-generator-cli 5.3.1-SNAPSHOT
  commit : cee5f75
  built  : 2021-12-10T22:16:21Z
  source : https://github.com/openapitools/openapi-generator
  docs   : https://openapi-generator.tech/

OpenAPI declaration file content or url

openapi: 3.0.0
info:
  title: Sample API
  version: 0.1.9
paths:
  /users:
    get:
      summary: Returns installed RAM.
      responses:
        200:    # status code
          description: ok
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Memory'
components:
  schemas:
    Memory:
      type: object
      properties:
        ram_installed:
          type: "integer"
          default: 2147483648

Generation Details

[main] INFO  o.o.codegen.DefaultGenerator - Generating with dryRun=false
[main] INFO  o.o.codegen.DefaultGenerator - OpenAPI Generator: python-aiohttp (server)
[main] INFO  o.o.codegen.DefaultGenerator - Generator 'python-aiohttp' is considered stable.
[main] INFO  o.o.c.l.AbstractPythonCodegen - Environment variable PYTHON_POST_PROCESS_FILE not defined so the Python code may not be properly formatted. To de
fine it, try 'export PYTHON_POST_PROCESS_FILE="/usr/local/bin/yapf -i"' (Linux/Mac)
[main] INFO  o.o.c.l.AbstractPythonCodegen - NOTE: To enable file post-processing, 'enablePostProcessFile' must be set to `true` (--enable-post-process-file f
or CLI).
[main] WARN  o.o.codegen.DefaultCodegen - Empty operationId found for path: GET /users. Renamed to auto-generated operationId: usersGET
[main] INFO  o.o.codegen.utils.URLPathUtils - 'host' (OAS 2.0) or 'servers' (OAS 3.0) not defined in the spec. Default to [http://localhost] for server URL [h
ttp://localhost/]
[main] INFO  o.o.codegen.utils.URLPathUtils - 'host' (OAS 2.0) or 'servers' (OAS 3.0) not defined in the spec. Default to [http://localhost] for server URL [h
ttp://localhost/]
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/models/memory.py
[main] INFO  o.o.codegen.utils.URLPathUtils - 'host' (OAS 2.0) or 'servers' (OAS 3.0) not defined in the spec. Default to [http://localhost] for server URL [h
ttp://localhost/]
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/controllers/default_controller.py
[main] INFO  o.o.codegen.TemplateManager - Skipped /local/out/tests/test_default_controller.py (Test files never overwrite an existing file of the same name.)
[main] INFO  o.o.codegen.utils.URLPathUtils - 'host' (OAS 2.0) or 'servers' (OAS 3.0) not defined in the spec. Default to [http://localhost] for server URL [h
ttp://localhost/]
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/README.md
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/test-requirements.txt
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/requirements.txt
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/__main__.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/util.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/typing_utils.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/controllers/__init__.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/controllers/security_controller_.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/models/__init__.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/models/base_model_.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/openapi/openapi.yaml
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/tests/conftest.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/tests/__init__.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/openapi_server/__init__.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/setup.py
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/tox.ini
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/.gitignore
[main] INFO  o.o.codegen.TemplateManager - Skipped /local/out/.openapi-generator-ignore (Skipped by supportingFiles options supplied by user.)
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/.openapi-generator/VERSION
[main] INFO  o.o.codegen.TemplateManager - writing file /local/out/.openapi-generator/FILES

Steps to reproduce

Generate a server with python-aiohttp using docker.

❯ docker run --rm -v "$PWD:/local" openapitools/openapi-generator-cli generate \                                                                      
          -i /local/example.yml \
          -g python-aiohttp \
          -o /local/out/

Related issues/PRs

Suggest a fix

Run the supplied Docker generation command with the OpenAPI declaration and the python-aiohttp generator, then inspect the generated openapi_server/models/memory.py output for values around 2147483647 and 2147483648. Trace the python-aiohttp generator path or template that renders the constructor default, and verify that large integer defaults remain unchanged in the generated signature.