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class Sequential(ModuleList): '\n Sequential Module, takes callable of Modules which are then executed in sequence\n ' def __call__(self, inp, *, collected_outputs: Optional[Dict[(str, Tensor)]]=None, **kwargs) -> Tensor: '\n Forward\n ' for (name, module) in self.items():...
def sequential(source: Tensor, *modules) -> Tensor: '\n Wraps ``Sequential(*modules)(source)``\n ' return Sequential(*modules)(source)
def _convert_to_module(obj: _ModT) -> rf.Module: if isinstance(obj, rf.Module): return obj elif callable(obj): return rf.Functional(obj) else: raise TypeError(f'Expected rf.Module or callable, did not expect {obj!r} ({type(obj)})')
def _is_iterable(obj) -> bool: try: iter(obj) return True except TypeError: return False
class ParameterList(rf.Module): '\n Parameter list, getting passed an Iterable of Parameters and creates a list of Parameters in that order\n ' def __init__(self, *parameters: Union[(rf.Parameter, Iterable[rf.Parameter], Dict[(str, rf.Parameter)], ParameterList)]): super().__init__() if...
def _is_int_str(s: str) -> bool: try: int(s) return True except ValueError: return False
@contextmanager def control_flow_ctx(ctx: Optional[ControlFlowContext]=None): '\n Activates the given control flow context.\n ' global _ctx prev_ctx = _ctx try: _ctx = ctx (yield ctx) finally: _ctx = prev_ctx
def get_current_control_flow_ctx() -> Optional[ControlFlowContext]: '\n :return: current control flow context\n ' return _ctx
class _ConvOrTransposedConv(rf.Module): '\n Base class for both convolution and transposed convolution.\n ' nd: Optional[int] = None _transposed: bool groups: Optional[int] = None def __init__(self, in_dim: Dim, out_dim: Dim, filter_size: Union[(Sequence[Union[(int, Dim)]], int, Dim)], *, p...
class _Conv(_ConvOrTransposedConv): '\n A generic convolution layer which supports 1D, 2D and 3D convolution.\n Base class for :class:`Conv1d`, :class:`Conv2d`, :class:`Conv3d`.\n ' _transposed = False def __init__(self, in_dim: Dim, out_dim: Dim, filter_size: Union[(Sequence[Union[(int, Dim)]],...
def conv(source: Tensor, *, in_dim: Dim, out_dim: Dim, in_spatial_dims: Sequence[Dim], out_spatial_dims: Optional[Sequence[Dim]]=None, filter: Tensor, filter_size: Sequence[Dim], padding: str, strides: Optional[Union[(int, Sequence[int])]]=None, dilation_rate: Optional[Union[(int, Sequence[int])]]=None, groups: Optio...
class Conv1d(_Conv): '\n 1D convolution\n ' nd = 1 def __init__(self, in_dim: Dim, out_dim: Dim, filter_size: Union[(int, Dim)], *, padding: str, strides: Optional[int]=None, dilation_rate: Optional[int]=None, groups: Optional[int]=None, with_bias: bool=True): '\n :param Dim in_dim:\...
class Conv2d(_Conv): '\n 2D convolution\n ' nd = 2
class Conv3d(_Conv): '\n 3D convolution\n ' nd = 3
class _TransposedConv(_ConvOrTransposedConv): '\n Transposed convolution, sometimes also called deconvolution.\n See :func:`tf.nn.conv2d_transpose` (currently we support 1D/2D).\n ' nd: Optional[int] = None _transposed = True def __init__(self, in_dim: Dim, out_dim: Dim, filter_size: Sequenc...
def transposed_conv(source: Tensor, *, in_dim: Dim, out_dim: Dim, in_spatial_dims: Sequence[Dim], out_spatial_dims: Optional[Sequence[Dim]]=None, filter: Tensor, filter_size: Sequence[Dim], padding: str, remove_padding: Union[(Sequence[int], int)]=0, output_padding: Optional[Union[(Sequence[Optional[int]], int)]]=Non...
class TransposedConv1d(_TransposedConv): '\n 1D transposed convolution\n ' nd = 1 __call__ = _ConvOrTransposedConv._call_nd1
class TransposedConv2d(_TransposedConv): '\n 2D transposed convolution\n ' nd = 2
class TransposedConv3d(_TransposedConv): '\n 3D transposed convolution\n ' nd = 3
def pool(source: Tensor, *, mode: str, pool_size: Union[(Sequence[int], int)], padding: str='valid', dilation_rate: Union[(Sequence[int], int)]=1, strides: Optional[Union[(Sequence[int], int)]]=None, in_spatial_dims: Union[(Sequence[Dim], Dim)], out_spatial_dims: Optional[Union[(Sequence[Dim], Dim)]]=None, nd: Option...
def max_pool(source: Tensor, *, pool_size: Union[(Sequence[int], int)], padding: str='valid', dilation_rate: Union[(Sequence[int], int)]=1, strides: Optional[Union[(Sequence[int], int)]]=None, in_spatial_dims: Union[(Sequence[Dim], Dim)], out_spatial_dims: Optional[Union[(Sequence[Dim], Dim)]]=None) -> Tuple[(Tensor,...
def max_pool1d(source: Tensor, *, pool_size: int, padding: str='valid', dilation_rate: int=1, strides: Optional[int]=None, in_spatial_dim: Dim, out_spatial_dim: Optional[Dim]=None) -> Tuple[(Tensor, Dim)]: 'max pool' return pool1d(source=source, mode='max', pool_size=pool_size, padding=padding, dilation_rate=...
def pool1d(source: Tensor, *, mode: str, pool_size: int, padding: str='valid', dilation_rate: int=1, strides: Optional[int]=None, in_spatial_dim: Dim, out_spatial_dim: Optional[Dim]=None) -> Tuple[(Tensor, Dim)]: '\n 1D pooling.\n\n :param Tensor source:\n :param str mode: "max" or "avg"\n :param tupl...
def pool2d(source: Tensor, *, mode: str, pool_size: Union[(Sequence[int], int)], padding: str='valid', dilation_rate: Union[(Sequence[int], int)]=1, strides: Optional[Union[(Sequence[int], int)]]=None, in_spatial_dims: Sequence[Dim], out_spatial_dims: Optional[Sequence[Dim]]=None) -> Tuple[(Tensor, Sequence[Dim])]: ...
def pool3d(source: Tensor, *, mode: str, pool_size: Union[(Sequence[int], int)], padding: str='valid', dilation_rate: Union[(Sequence[int], int)]=1, strides: Optional[Union[(Sequence[int], int)]]=None, in_spatial_dims: Sequence[Dim], out_spatial_dims: Optional[Sequence[Dim]]=None) -> Tuple[(Tensor, Sequence[Dim])]: ...
def make_conv_out_spatial_dims(in_spatial_dims: Sequence[Dim], *, filter_size: Union[(Sequence[Union[(int, Dim)]], int, Dim)], padding: str, strides: Union[(Sequence[int], int)]=1, dilation_rate: Union[(Sequence[int], int)]=1, description_prefix: Optional[str]=None) -> Sequence[Dim]: 'create out spatial dims from...
def _calc_out_dim(in_dim, filter_size, stride, padding, dilation_rate=1): '\n Copied and adapted from TF ConvLayer.calc_out_dim.\n\n :param T|int|Tensor|torch.Tensor|tensorflow.Tensor|Dim in_dim: dimension in some axis\n :param int filter_size: e.g. 2, for the corresponding axis\n :param int stride: e...
class TransformerDecoder(rf.Module): '\n Represents Transformer decoder architecture\n ' def __init__(self, encoder_dim: Dim, vocab_dim: Dim, model_dim: Dim=Dim(512, name='transformer-dec-default-model-dim'), *, num_layers: int, ff_dim: Dim=NotSpecified, ff_activation: Callable[([Tensor], Tensor)]=rf.r...
class TransformerDecoderLayer(rf.Module): '\n Represents a conformer block\n ' def __init__(self, encoder_dim: Dim, out_dim: Dim=Dim(512, name='transformer-dec-default-out-dim'), *, ff_dim: Dim=NotSpecified, ff_activation: Callable[([Tensor], Tensor)]=rf.relu, dropout: float=0.1, num_heads: int=8, self...
class FeedForward(rf.Module): '\n Conformer position-wise feedforward neural network layer\n FF -> Activation -> Dropout -> FF\n ' def __init__(self, out_dim: Dim, *, ff_dim: Optional[Dim]=NotSpecified, dropout: float, activation: Callable[([Tensor], Tensor)]): '\n :param out_dim:...
def copy_to_device(x: Tensor, device: Optional[str]=None) -> Tensor: '\n Copy tensor to device.\n\n :param x: tensor\n :param device:\n :return: tensor on device\n ' if (not device): device = get_default_device() if (not device): return x if (x.raw_tensor is None): ...
def get_default_device() -> Optional[str]: '\n :return: default device, where to put new tensors (via random number generators, constant, range_over_dim, etc)\n ' return _default_device
@contextmanager def set_default_device_ctx(device: Optional[str]): '\n :param device: see :func:`get_default_device`\n ' global _default_device old_device = _default_device try: _default_device = device (yield) finally: _default_device = old_device
def range_over_dim(dim: Dim, *, dtype: Optional[str]=None, device: Optional[str]=None) -> Tensor[T]: '\n :param dim:\n :param dtype:\n :param device,\n :return: tensor with shape [dim]\n ' if dim.dyn_size_ext: backend = get_backend_by_tensor(dim.dyn_size_ext, fallback=global_backend) ...
def range_over_dim_strided(dim: Dim, *, stride: Union[(int, Tensor)], out_dim: Optional[Dim]=None, dtype: Optional[str]=None, device: Optional[str]=None) -> Tuple[(Tensor[T], Dim)]: '\n :param dim:\n :param stride:\n :param out_dim:\n :param dtype:\n :param device,\n :return: tensor with shape [...
def range_over_merged_dims(dims: Sequence[Dim], *, dtype: Optional[str]=None, device: Optional[str]=None) -> Tensor[T]: '\n This is if you want to index into a merged dim.\n Related: :func:`rf.merge_dims`.\n\n :param dims:\n :param dtype:\n :param device:\n :return: tensor with shape [dim_0, ......
def replace_dim(source: Tensor, *, in_dim: Dim, out_dim: Optional[Dim]=None) -> Tuple[(Tensor, Dim)]: '\n Also see: :func:`rf.merge_dims`, :func:`rf.split_dims`.\n\n :param source:\n :param in_dim:\n :param out_dim:\n :return: source with in_dim replaced by out_dim, and new out_dim.\n this d...
def dim_match_priority_when_needed(dim: Dim, *other_dims: Dim) -> Dim: '\n :return: maybe copy of dim with higher match_priority if needed to distinguish from other_dims\n\n Why or when is this needed?\n\n For activation values, this should never be needed,\n and all dims should be unique.\n\n In c...
def num_elements_of_shape(dims: Sequence[Dim]) -> Union[(int, Tensor)]: '\n :param dims:\n :return: num elements of a tensor of shape dims, properly considering masking\n ' if all((dim.is_static() for dim in dims)): n = 1 for dim in dims: n *= dim.dimension return ...
def dropout(source: Tensor, drop_prob: Union[(float, Tensor)], *, axis: Optional[Union[(Dim, Sequence[Dim], bool)]]=None, on_forward: bool=False) -> Tensor: '\n Applies dropout.\n\n Dropout will only be applied during training (unless you set on_forward=True).\n\n When dropout is applied, the output will...
def _dropout(x: Tensor, keep_prob: Union[(float, Tensor)], noise_dims: Sequence[Dim], seed=None, apply_correction_factor=True) -> Tensor: '\n Computes dropout.\n\n Adopted from tf_util.dropout.\n Like :func:`tf.nn.dropout` but avoid :func:`tf.div` if possible.\n\n Note that in tf_util.dropout, we had ...
def dropout_broadcast_default() -> bool: '\n Check the global RETURNN config\n whether we should broadcast on non-related dropout dimensions.\n\n Historically in RETURNN, when we did dropout in the feature dimension,\n we broadcasted the dropout mask over the other dimensions (e.g. time and batch).\n\...
def get_default_float_dtype() -> str: '\n https://data-apis.org/array-api/latest/API_specification/data_types.html#default-data-types\n\n :return: default dtype for float\n ' return _default_float_dtype
def get_default_int_dtype() -> str: '\n https://data-apis.org/array-api/latest/API_specification/data_types.html#default-data-types\n\n :return: default dtype for int\n ' return _default_int_dtype
def get_default_array_index_dtype() -> str: '\n https://data-apis.org/array-api/latest/API_specification/data_types.html#default-data-types\n\n :return: default dtype for array index - currently just the same as :func:`get_default_int_dtype`\n ' return get_default_int_dtype()
def is_float_dtype(dtype: str) -> bool: '\n :return: whether the dtype is float, e.g. it supports backprop etc\n ' return dtype.startswith('float')
class IEncoder(rf.Module, ABC): '\n Generic encoder interface\n\n The encoder is a function x -> y.\n The input can potentially be sparse or dense.\n The output is dense with feature dim `out_dim`.\n ' out_dim: Dim def __call__(self, source: Tensor) -> Tensor: '\n Encode the...
class ISeqFramewiseEncoder(rf.Module, ABC): '\n This specializes IEncoder that it operates on a sequence.\n The output sequence length here is the same as the input.\n ' out_dim: Dim def __call__(self, source: Tensor, *, spatial_dim: Dim) -> Tensor: raise NotImplementedError
class ISeqDownsamplingEncoder(rf.Module, ABC): '\n This is more specific than IEncoder in that it operates on a sequence.\n The output sequence length here is shorter than the input.\n\n This is a common scenario for speech recognition\n where the input might be on 10ms/frame\n and the output might...
class ConformerPositionwiseFeedForward(rf.Module): '\n Conformer position-wise feedforward neural network layer\n FF -> Activation -> Dropout -> FF\n ' def __init__(self, out_dim: Dim, *, ff_dim: Dim, dropout: float, activation: Callable[([Tensor], Tensor)]): '\n :param out_dim: o...
class ConformerConvBlock(rf.Module): '\n Conformer convolution block\n FF -> GLU -> depthwise conv -> BN -> Swish -> FF\n ' def __init__(self, out_dim: Dim, *, kernel_size: int, norm: Union[(rf.BatchNorm, Any)]): '\n :param out_dim: output feature dimension\n :param kernel_...
class ConformerConvSubsample(ISeqDownsamplingEncoder): '\n Conv 2D block with optional max-pooling or striding.\n\n References:\n\n https://github.com/espnet/espnet/blob/4138010fb66ad27a43e8bee48a4932829a0847ae/espnet/nets/pytorch_backend/transformer/subsampling.py#L162\n https://github.com/rwth-i...
class ConformerEncoderLayer(rf.Module): '\n Represents a conformer block\n ' def __init__(self, out_dim: Dim=Dim(512, name='conformer-enc-default-out-dim'), *, ff_dim: Dim=NotSpecified, ff_activation: Callable[([Tensor], Tensor)]=rf.swish, dropout: float=0.1, conv_kernel_size: int=32, conv_norm: Union[...
class ConformerEncoder(ISeqDownsamplingEncoder): '\n Represents Conformer encoder architecture\n ' def __init__(self, in_dim: Dim, out_dim: Dim=Dim(512, name='conformer-enc-default-out-dim'), *, num_layers: int, input_layer: Union[(ConformerConvSubsample, ISeqDownsamplingEncoder, rf.Module, Any)], inpu...
def set_requires_gradient(source: Tensor): '\n :param source:\n :return: nothing, modifies source in-place\n ' return source._raw_backend.set_requires_gradient(source)
def gradient(y: Tensor, x: Tensor) -> Tensor: '\n :param y: some scalar\n :param x: some tensor\n :return: gradient of y w.r.t. x\n ' return y._raw_backend.gradient(y, x)
def stop_gradient(source: Tensor) -> Tensor: 'wraps tf.stop_gradient or torch detach' return source._raw_backend.stop_gradient(source)
def scaled_gradient(source: Tensor, scale: Union[(float, Tensor)]) -> Tensor: '\n :param source:\n :param scale: if constant 0., will use :func:`stop_gradient`.\n Can be used as gradient reversal layer (with negative factor).\n :return: source with scaled gradient\n ' if ((not isinstance(sc...
def scaled_gradient_ext(source: Tensor, *, scale: Union[(float, Tensor)], shift: Optional[Union[(float, Tensor)]]=None, scale_shift_by_sum_over_axis: Optional[Dim]=None) -> Tensor: '\n Just `identity` in the forward pass.\n Scales the gradient by some factor in backprop.\n Can be used as gradient reversa...
def get_tensor_dependencies(x: Tensor) -> Sequence[Tensor]: '\n :param x: tensor\n :return: list of tensors which are inputs to x\n ' return x._raw_backend.get_tensor_dependencies(x)
def get_tensor_consumers(x: Tensor) -> Sequence[Tensor]: '\n :param x: tensor\n :return: list of tensors which consume x\n ' return x._raw_backend.get_tensor_consumers(x)
def walk_tensor_consumers(seed: Union[(Tensor, Sequence[Tensor])], *, filter_outputs: Callable[([Tensor], bool)]=None, ending_condition: Callable[([Tensor], bool)]=None) -> List[Tensor]: '\n :param seed: tensor\n :param filter_outputs: if given, this function will be called with each tensor,\n and if...
class ParamInit(): 'API for param init' def __call__(self, dims: Sequence[Dim], dtype: str, *, sparse_dim: Optional[Dim]=None, device: Optional[str]=None, out: Optional[Tensor]=None) -> Union[(Tensor, rf.RawTensorTypes)]: raise NotImplementedError
class Normal(ParamInit): '\n Initialization by normal distribution (truncated by default),\n independent of the dimensions (fan in/out).\n\n See :class:`VarianceScaling` and derivatives for variants which depend on fan in/out.\n ' def __init__(self, stddev: float, *, truncated: bool=True, dtype: ...
class VarianceScaling(ParamInit): '\n Provides a generalized way for initializing weights.\n All the common initialization methods are special cases\n such as Xavier Glorot and Kaiming He.\n\n Code adopted from TensorFlow VarianceScaling.\n ' scale = 1.0 mode = 'fan_in' distribution = '...
class Glorot(VarianceScaling): '\n Xavier Glorot (http://proceedings.mlr.press/v9/glorot10a/glorot10a.pdf).\n scale 1, fan_avg, uniform\n ' scale = 1.0 mode = 'fan_avg' distribution = 'uniform'
class He(VarianceScaling): '\n Kaiming He (https://arxiv.org/pdf/1502.01852.pdf).\n scale 2, fan_in, normal\n ' scale = 2.0 mode = 'fan_in' distribution = 'normal'
class HeUniform(He): '\n He-init (:class:`He`) but using a uniform distribution.\n scale 2, fan_in, uniform\n ' distribution = 'uniform'
def _compute_fans(dims: Sequence[Dim]): 'Computes the number of input and output units for a weight shape.\n\n Args:\n dims: Integer shape tuple or TF tensor shape.\n\n Returns:\n A tuple of integer scalars (fan_in, fan_out).\n ' dims = [dim.dimension for dim in dims] if (len(dims) < 1)...
def label_smoothing(prob: Tensor, smoothing: Union[(Tensor, float)], *, axis: Optional[Dim]=None) -> Tensor: '\n Label smoothing, often used for cross entropy.\n\n In case of sparse data, it will become dense (via :func:`smooth_one_hot`)\n and the target label will get probability (1 - smoothing).\n '...
def smooth_one_hot(source: Tensor, *, label_prob: Union[(Tensor, float)]) -> Tensor: '\n Smooth variant of :func:`one_hot`.\n Uses ``label_prob`` for the labels and ``(1 - label_prob) / (dim - 1)`` for the remaining values.\n This is used for label smoothing.\n ' assert source.sparse_dim if (s...
def label_smoothed_log_prob_gradient(log_prob: Tensor, smoothing: Union[(Tensor, float)], *, axis: Optional[Dim]=None, exclude_labels: Optional[Sequence[int]]=None) -> Tensor: '\n :param log_prob: shape [...,D] (not necessarily the same as loss)\n :param smoothing: smoothing factor, for :func:`label_smoothi...
class Linear(rf.Module): '\n Linear transformation.\n ' def __init__(self, in_dim: Dim, out_dim: Dim, *, with_bias=True): super().__init__() assert (isinstance(in_dim, Dim) and isinstance(out_dim, Dim)) self.in_dim = in_dim self.out_dim = out_dim self.weight = rf...
class Embedding(rf.Module): '\n Embedding.\n ' def __init__(self, in_dim: Dim, out_dim: Dim): super().__init__() assert (isinstance(in_dim, Dim) and isinstance(out_dim, Dim)) self.in_dim = in_dim self.out_dim = out_dim self.weight = rf.Parameter((rf.dim_match_pri...
def while_loop(cond: Callable[([S], Union[(bool, Tensor)])], body: Callable[([S], S)], initial: S) -> S: '\n It executes::\n\n while cond(loop_vars):\n loop_vars = body(loop_vars)\n\n And then it returns the final loop vars.\n\n If you want to iterate over some axis,\n maybe of an ex...
def _get_bool_value_eager(v: Union[(Tensor, bool)]) -> bool: if isinstance(v, Tensor): assert ((v.dims == ()) and (v.dtype == 'bool')) assert (v.device in (None, 'cpu')), f'while_loop: cond should be on CPU, got {v} on device {v.device}' return bool(v.raw_tensor) elif isinstance(v, boo...
def scan(*, spatial_dim: Optional[Dim]=None, cond_dims: Optional[Sequence[Dim]]=None, cond_before_body: bool=True, initial: S=None, xs: X=None, ys: Y=None, cond: Optional[Callable[([X, S], Tensor)]]=None, body: Callable[([X, S], Tuple[(Y, S)])], max_seq_len: Optional[Union[(int, Tensor)]]=None, return_tensor_arrays: ...
def _templates_for_loop_vars(loop_vars: S) -> S: def _get_template(x): if isinstance(x, Tensor): return x.copy_template() elif isinstance(x, Dim): return x elif isinstance(x, TensorArray): return x elif (x is None): return None ...
def _check_matching_loop_var_templates(loop_var_templates: S, loop_vars: S): def _check(path, template, x): if isinstance(template, Tensor): assert isinstance(x, Tensor), f'loop var {path} is not a Tensor but {type(x)}' assert (template.batch_ndim == x.batch_ndim), f'loop var {pat...
class _DimUpdatesEager(): '\n In case dims are updated in the loop body, we need to keep track of this.\n\n This implementation is for eager-based backends.\n\n A graph-based backend would need to distinguish:\n - initial dim\n - dim in loop body (temporarily), input from prev iteration state\n ...
def cross_entropy(*, estimated: Tensor, target: Tensor, axis: Dim, estimated_type: str) -> Tensor: '\n ``target`` is supposed to be in probability space (normalized). It can also be sparse, i.e. contain class indices.\n ``estimated`` can be probs, log-probs or logits, specified via ``estimated_type``.\n\n ...
def ctc_loss(*, logits: Tensor, targets: Tensor, input_spatial_dim: Dim, targets_spatial_dim: Dim, blank_index: int, max_approx: bool=False) -> Tensor: '\n Calculates the CTC loss.\n\n Internally, this uses :func:`returnn.tf.native_op.ctc_loss`\n which is equivalent to tf.nn.ctc_loss but more efficient.\...
@typing.overload def compare(a: Tensor, kind: str, b: Tensor, *, allow_broadcast_all_sources: Optional[bool]=None, dim_order: Optional[Sequence[Dim]]=None) -> Tensor: 'compare with two tensors'
def compare_bc(a: Tensor, kind: str, b: Tensor, *, dim_order: Optional[Sequence[Dim]]=None) -> Tensor: ':func:`compare` with allow_broadcast_all_sources=True' return compare(a, kind, b, allow_broadcast_all_sources=True, dim_order=dim_order)
@typing.overload def combine(a: Tensor, kind: str, b: Tensor, *, allow_broadcast_all_sources: Optional[bool]=None, dim_order: Optional[Sequence[Dim]]=None) -> Tensor: 'combine with two tensors'
def combine_bc(a: Tensor, kind: str, b: Tensor, *, dim_order: Optional[Sequence[Dim]]=None) -> Tensor: ':func:`combine` with allow_broadcast_all_sources=True' return combine(a, kind, b, allow_broadcast_all_sources=True, dim_order=dim_order)
def equal(a: Tensor, b: Tensor) -> Tensor: 'equal' return compare(a, 'equal', b)
def less(a: Tensor, b: Tensor) -> Tensor: 'less' return compare(a, 'less', b)
def less_equal(a: Tensor, b: Tensor) -> Tensor: 'less_equal' return compare(a, 'less_equal', b)
def greater(a: Tensor, b: Tensor) -> Tensor: 'greater' return compare(a, 'greater', b)
def greater_equal(a: Tensor, b: Tensor) -> Tensor: 'greater_equal' return compare(a, 'greater_equal', b)
def not_equal(a: Tensor, b: Tensor) -> Tensor: 'not_equal' return compare(a, 'not_equal', b)
def add(a: Tensor, b: Tensor) -> Tensor: 'add' return combine(a, 'add', b)
def sub(a: Tensor, b: Tensor) -> Tensor: 'sub' return combine(a, 'sub', b)
def mul(a: Tensor, b: Tensor) -> Tensor: 'mul' return combine(a, 'mul', b)
def true_divide(a: Tensor, b: Tensor) -> Tensor: 'truediv' return combine(a, 'truediv', b)
def floor_divide(a: Tensor, b: Tensor) -> Tensor: 'floordiv' return combine(a, 'floordiv', b)
def ceil_divide(a: Tensor, b: Tensor) -> Tensor: 'ceildiv' return (- ((- a) // b))
def neg(a: Tensor) -> Tensor: 'neg' return a._raw_backend.activation(a, 'neg')
def reciprocal(a: Tensor) -> Tensor: 'reciprocal / inverse, i.e. 1/a' return a._raw_backend.activation(a, 'reciprocal')