def log1p(input, name: nil)
      check_allowed_types(input, FLOATING_POINT_TYPES)
      _op(:log1p, input, name: name)
    end
def log1p(input, name: nil)
      check_allowed_types(input, FLOATING_POINT_TYPES)
      _op(:log1p, input, name: name)
    end
Computes natural logarithm of (1 + x) element-wise.