Actual behavior A clear and concise description of what the bug is.

we have an interface that uses "github.com/tikv/client-go/v2/tikv".Codec. And that type is defined as

under "github.com/tikv/client-go/v2/tikv":

import "github.com/tikv/client-go/v2/internal/apicodec"
...
type Codec = apicodec.Codec

In the generated mock files, it directly imports "github.com/tikv/client-go/v2/internal/apicodec" which is not allowed for the non-internal usage.

Expected behavior A clear and concise description of what you expected to
happen.

It should import "github.com/tikv/client-go/v2/tikv" instead

To Reproduce Steps to reproduce the behavior

1. ...
2. ...

Additional Information

• gomock mode (reflect or source): default value
• gomock version or git ref: v0.5.0
• golang version: 1.23

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