RBAC

i need someone xplain me why this not works

  import { createAccessControl } from "better-auth/plugins/access";
  import { defaultStatements, adminAc } from "better-auth/plugins/admin/access";
  
  const statement = {
      ...defaultStatements, 

  } as const;
  
  export const ac = createAccessControl(statement);
  
  export const superadmin = ac.newRole({

  ...adminAc.statements,
  })


  export const roles = {
    superadmin
  };

  import { createAccessControl } from "better-auth/plugins/access";
  import { defaultStatements, adminAc } from "better-auth/plugins/admin/access";
  
  const statement = {
      ...defaultStatements, 

  } as const;
  
  export const ac = createAccessControl(statement);
  
  export const superadmin = ac.newRole({

  ...adminAc.statements,
  })


  export const roles = {
    superadmin
  };