code: @NonNull
      public SourceParams setType(@Source.SourceType String type) {
          mType = type;
          mTypeRaw = type;
          return this;
      }
docs: Sets the {@link SourceType} for this source. If you are creating a custom type,
  use {@link #setTypeRaw(String)}.
  
  @param type the {@link SourceType}
  @return {@code this}, for chaining purposes