processor/src/main/java/repacked/com/squareup/javawriter/JavaWriter.java
public JavaWriter emitImports(Collection<String> types) throws IOException {
    for (String type : new TreeSet<String>(types)) {
      Matcher matcher = TYPE_PATTERN.matcher(type);
      if (!matcher.matches()) {
        throw new IllegalArgumentException(type);
      }
      if (importedTypes.put(type, matcher.group(1)) != null) {
        throw new IllegalArgumentException(type);
      }
      out.write("import ");
      out.write(type);
      out.write(";\n");
    }
    return this;
  }
public JavaWriter emitImports(Collection<String> types) throws IOException {
    for (String type : new TreeSet<String>(types)) {
      Matcher matcher = TYPE_PATTERN.matcher(type);
      if (!matcher.matches()) {
        throw new IllegalArgumentException(type);
      }
      if (importedTypes.put(type, matcher.group(1)) != null) {
        throw new IllegalArgumentException(type);
      }
      out.write("import ");
      out.write(type);
      out.write(";\n");
    }
    return this;
  }
Emit an import for each {@code type} in the provided {@code Collection}. For the duration of
the file, all references to these classes will be automatically shortened.