Code Contribution: 【Lv3】【Operator Development】istft

[StrongSpoon]

Description 任务介绍

Develop forward function for istft operator.
开发istft算子的前向功能。

Requirements 任务要求

Interface 接口
istft(Tensor self, int n_fft, int? hop_length=None, int? win_length=None, Tensor? window=None, bool center=True, bool normalized=False, bool? onesided=None, int? length=None, bool return_complex=False) -> Tensor
Function reference 功能参考
https://pytorch.org/docs/stable/generated/torch.istft.html#torch.istft
Implementation reference 实现参考
None 暂无

The operator should support all optional arguments defined in the interface.
算子应支持接口中定义的所有参数选项。

DDL 提交时间

Please submit a Pull Request within 3 weeks after accepting the assignment.
请于接取任务后三周内提交PR。
Please provide both accuracy test and performance test code.
请同时提供实现正确性测试与性能测试代码。