Fix/typo

[radiantjade]

Fixed two critical typos in null_text_with_ptp.ipynb

1. 'x_t' was non existant on get_mask method :

class LocalBlend:
    def get_mask(self, maps, alpha, use_pool):
        k = 1
        maps = (maps * alpha).sum(-1).mean(1)
        if use_pool:
            maps = nnf.max_pool2d(maps, (k * 2 + 1, k * 2 +1), (1, 1), padding=(k, k))
        mask = nnf.interpolate(maps, size=(x_t.shape[2:]))  # omits error

class LocalBlend:
    def get_mask(self, maps, alpha, use_pool, x_t): 
        k = 1
        maps = (maps * alpha).sum(-1).mean(1)
        if use_pool:
            maps = nnf.max_pool2d(maps, (k * 2 + 1, k * 2 +1), (1, 1), padding=(k, k))
        mask = nnf.interpolate(maps, size=(x_t.shape[2:]))

2. Changed blend_word -> blend_words :

def make_controller(prompts: List[str], is_replace_controller: bool, cross_replace_steps: Dict[str, float], self_replace_steps: float, blend_words=None, equilizer_params=None) -> AttentionControlEdit:
    if blend_words is None:
        lb = None
    else:
        lb = LocalBlend(prompts, blend_word)  # omits error

def make_controller(prompts: List[str], is_replace_controller: bool, cross_replace_steps: Dict[str, float], self_replace_steps: float, blend_words=None, equilizer_params=None) -> AttentionControlEdit:
    if blend_words is None:
        lb = None
    else:
        lb = LocalBlend(prompts, blend_words) 

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