code: public Matrix4x3f set(Matrix4fc m) {
          if (m instanceof Matrix4f) {
              MemUtil.INSTANCE.copy((Matrix4f) m, this);
          } else {
              setMatrix4fc(m);
          }
          properties = m.properties() & (PROPERTY_IDENTITY | PROPERTY_TRANSLATION | PROPERTY_ORTHONORMAL);
          return this;
      }
docs: Store the values of the upper 4x3 submatrix of <code>m</code> into <code>this</code> matrix.
  
  @see Matrix4fc#get4x3(Matrix4x3f)
  
  @param m
  the matrix to copy the values from
  @return this