code: public static <T extends FieldDescription> ElementMatcher.Junction<T> fieldType(ElementMatcher<? super TypeDescription> matcher) {
          return genericFieldType(erasure(matcher));
      }
docs: Matches a field's raw type against the provided matcher.
  
  @param matcher The matcher to apply to the field's type.
  @param <T>     The type of the matched object.
  @return A matcher matching the provided field type.