Attempts to construct a value of type FString

construct-fstring.ts

type FString = string & { __compileTimeOnly: any };

const failure1: FString = 'hello world'; // Error: Type 'string' is not assignable to type '{ __compileTimeOnly: any; }'.
const failure2: FString = { __compileTimeOnly: 'whatever' }; // Error: Type '{ __compileTimeOnly: string; }' is not assignable to type 'string'.

const success1: FString = 'hello world' as FString;
const success2: FString = { __compileTimeOnly: 'whatever' } as FString;