code: public FloatAssert isEqualTo(float expected, Offset<Float> offset) {
      floats.assertEqual(description, actual, expected, offset);
      return this;
    }
docs: Verifies that the actual value is equal to the given one, within a positive offset.
  
  @param expected the given value to compare the actual value to.
  @param offset   the given positive offset.
  @return {@code this} assertion object.
  @throws NullPointerException if the given offset is {@code null}.
  @throws AssertionError       if the actual value is {@code null}.
  @throws AssertionError       if the actual value is not equal to the given one.