`TypeAlias Any` used instead of actual schema

[simonLeary42]

In my generated python file, all the schemas I wanted are present but they have "1" or "Model" added to the end of the class name. Every single original schema name is taken by a TypeAlias any.

To Reproduce

Input schema:
https://github.com/simonLeary42/codegen-example/blob/main/openapi-schemas.json

Used commandline:

$ datamodel-codegen --input openapi-schemas.json --input-file-type jsonschema --output-model-type dataclasses.dataclass --output openapi_schemas.py

Behavior

This is the python file generated (after I formatted it with ruff):

https://github.com/simonLeary42/codegen-example/blob/de39b135db2346fef1c9c277e0936dd38aaf1f45/openapi_schemas.py

https://github.com/simonLeary42/codegen-example/blob/de39b135db2346fef1c9c277e0936dd38aaf1f45/openapi_schemas.py#L19-L23

class AccountStatus1(Enum):
    standard = "standard"
    founder = "founder"
    gold_founder = "gold_founder"
    vip_founder = "vip_founder"

https://github.com/simonLeary42/codegen-example/blob/de39b135db2346fef1c9c277e0936dd38aaf1f45/openapi_schemas.py#L594

AccountStatus: TypeAlias = Any

Here's a diff between what was generated and what I was expecting:

https://github.com/simonLeary42/codegen-example/commit/a399211fc8c36264854e96dcf33edb97c2c6d972

Version:

• OS: windows 11
• Python version: 3.12.10
• datamodel-code-generator version: 0.54.0

[coderabbitai]

🔗 Related PRs

#2537 - Add support for prefixItems to emit tuples [merged]
#2853 - Fix reuse-model generating type aliases instead of class inheritance [merged]
#2889 - Create type aliases for inline types with title when use-title-as-name is enabled [merged]
#2983 - Fix RecursionError in _merge_ref_with_schema for circular $ref [merged]
#2999 - Fix extra underscore on enum members like replace with --capitalise-enum-members [merged]

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[simonLeary42]

Oops, I was using --input-file-type jsonschema on a modified openapi file when I should have been using openapi on the original openapi file.