You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: bimport.go
    path of file: ./repos/moby/vendor/golang.org/x/tools/internal/gcimporter
    
    the code of the file until where you have to start completion: // Copyright 2015 The Go Authors. 
    
func predeclared() []types.Type {
	predeclOnce.Do(func() {
		// initialize lazily to be sure that all
		// elements have been initialized before
		predecl = []types.Type{ // basic types
			types.Typ[types.Bool],
			types.Typ[types.Int],
			types.Typ[types.Int8],
			types.Typ[types.Int16],
			types.Typ[types.Int32],
			types.Typ[types.Int64],
			types.Typ[types.Uint],
			types.Typ[types.Uint8],
			types.Typ[types.Uint16],
			types.Typ[types.Uint32],
			types.Typ[types.Uint64],
			types.Typ[types.Uintptr],
			types.Typ[types.Float32],
			types.Typ[types.Float64],
			types.Typ[types.Complex64],
			types.Typ[types.Complex128],
			types.Typ[types.String],

			// basic type aliases
			types.Universe.Lookup("byte").Type(),
			types.Universe.Lookup("rune").Type(),

			// error
			types.Universe.Lookup("error").Type(),

			// untyped types
			types.Typ[types.UntypedBool],
			types.Typ[types.UntypedInt],
			types.Typ[types.UntypedRune],
			types.Typ[types.UntypedFloat],
			types.Typ[types.UntypedComplex],
			types.Typ[types.UntypedString],
			types.Typ[types.UntypedNil],

			// package unsafe
			types.Typ[types.UnsafePointer],

			// invalid type
			types.Typ[types.Invalid], // only appears in packages with errors

			// used internally by gc; never used by this package or in .a files
			anyType{},
		}
		predecl = append(predecl, additionalPredeclared()...)
	})
	return predecl
}