added spectrogram method to Spectrum

src/scgenerator/spectra.py

@@ -5,7 +5,7 @@ import warnings
 from dataclasses import dataclass
 from functools import cached_property
 from pathlib import Path
-from typing import Callable, Generic, Iterator, Sequence, TypeVar, overload
+from typing import Callable, Generic, Iterable, Iterator, Sequence, TypeVar, overload
 
 import numpy as np
 
@@ -161,6 +161,9 @@ class Spectrum(np.ndarray):
         """
         return pulse.g12(self, axis)[..., self.wl_order]
 
+    def spectrogram(self, delays: Iterable[float], gate_width: float = 2e-13) -> np.ndarray:
+        return pulse.spectrogram(self.t, delays, self.time_amp, gate_width)
+
     freq_int = afreq_int
     freq_amp = afreq_amp