Convert the d.ts tree into a single d.ts file using rollup-plugin-dts

Lets suppose that I have a d.ts file that it imports types from other d.ts files which import types from other d.ts and it goes on.

Is there any tool that will allow me to create a single d.ts file from this tree that does not include all its dependencies and avoids name duplication?

The file index.d.ts is simply a collection of all the necessary declarations, and within them (for example, in data-grid.d.ts), there are also imports of external declarations.

index.d.ts

export * from './common.d.ts';
export * from './data-grid.d.ts';
export * from './tree-list.d.ts';
export * from './data/custom_store.d.ts';

I want to get a single declaration file with all the collected types and declarations.

I try to use rollup + rollup-plugin-dts

here is config

rollup.config.js

const { dts } = require('rollup-plugin-dts');

exports.default = {
  input: './index.d.ts',
  output: {
    file: 'dist/types.all.d.ts',
    format: 'es'
  },
  plugins: [dts()]
};

Everything builds without errors, but in the file types.all.d.ts, I get some types with unnecessary suffixes.
For example:

declare class NestedOption<P> extends React$1.PureComponent<P, any> {
    render(): React$1.ReactNode;
}

declare class AsyncRule$1 extends NestedOption<IAsyncRuleProps> {
  static OptionName: string;
  static IsCollectionItem: boolean;
  static PredefinedProps: {
    type: string;
  };
}

How can I get rid of these suffixes in the type names?

How would you suggest combining the tree of declarations into a single file?

P.S.: I understand that the problem might be due to the attempt to resolve duplicated names, but I cannot control or change the external declarations as they are the result of builds. Thank you in advance.