type MyType = [
  name1:string,
  name2: number,
  ...rest:any[]
]

interface MyInterface<T> extends MyType {
}

// "Interface 'MyInterface<T>' incorrectly extends interface '[name1: string, name2: number, ...rest: any[]]'.

type MyType = [
  name1:string,
  name2: number,
  ...rest:any[]
]

interface MyInterface extends MyType { //MyInterface is not generic => works
}

// ----------- OR -------------

type MyType = [ // MyType does not have ...rest => works fine
  name1:string,
  name2: number
]

interface MyInterface<T> extends MyType {
}

// ------------ OR ------------
type MyType = [ // MyType typle elements are not named => works fine
  string,
  number,
  ...any[]
]

interface MyInterface<T> extends MyType {
}