remove kwargs of brelu, leaky_relu and soft_relu

paddle/fluid/API.spec

@@ -162,6 +162,9 @@ paddle.fluid.layers.log ArgSpec(args=['x', 'name'], varargs=None, keywords=None,
 paddle.fluid.layers.crop ArgSpec(args=['x', 'shape', 'offsets', 'name'], varargs=None, keywords=None, defaults=(None, None, None))
 paddle.fluid.layers.rank_loss ArgSpec(args=['label', 'left', 'right', 'name'], varargs=None, keywords=None, defaults=(None,))
 paddle.fluid.layers.prelu ArgSpec(args=['x', 'mode', 'param_attr', 'name'], varargs=None, keywords=None, defaults=(None, None))
+paddle.fluid.layers.brelu ArgSpec(args=['x', 't_min', 't_max', 'name'], varargs=None, keywords=None, defaults=None)
+paddle.fluid.layers.leaky_relu ArgSpec(args=['x', 'alpha', 'name'], varargs=None, keywords=None, defaults=None)
+paddle.fluid.layers.soft_relu ArgSpec(args=['x', 'threshold', 'name'], varargs=None, keywords=None, defaults=None)
 paddle.fluid.layers.flatten ArgSpec(args=['x', 'axis', 'name'], varargs=None, keywords=None, defaults=(1, None))
 paddle.fluid.layers.sequence_mask ArgSpec(args=['x', 'maxlen', 'dtype', 'name'], varargs=None, keywords=None, defaults=(None, 'int64', None))
 paddle.fluid.layers.stack ArgSpec(args=['x', 'axis'], varargs=None, keywords=None, defaults=(0,))
@@ -258,9 +261,6 @@ paddle.fluid.layers.slice ArgSpec(args=[], varargs='args', keywords='kwargs', de
 paddle.fluid.layers.shape ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)
 paddle.fluid.layers.maxout ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)
 paddle.fluid.layers.softshrink ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)
-paddle.fluid.layers.brelu ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)
-paddle.fluid.layers.leaky_relu ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)
-paddle.fluid.layers.soft_relu ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)
 paddle.fluid.layers.elu ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)
 paddle.fluid.layers.relu6 ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)
 paddle.fluid.layers.pow ArgSpec(args=[], varargs='args', keywords='kwargs', defaults=None)

python/paddle/fluid/layers/nn.py

@@ -108,6 +108,9 @@ __all__ = [
     'crop',
     'rank_loss',
     'prelu',
+    'brelu',
+    'leaky_relu',
+    'soft_relu',
     'flatten',
     'sequence_mask',
     'stack',
@@ -5948,6 +5951,74 @@ def prelu(x, mode, param_attr=None, name=None):
     return out
 
 
+@templatedoc()
+def brelu(x, t_min=0.0, t_max=24.0, name=None):
+    """
+    ${comment}
+    Args:
+        x(${x_type}): ${x_comment}
+        t_min(${t_min_type}|0.0): ${t_min_comment}
+        t_max(${t_max_type}|24.0): ${t_max_comment}
+        name(str|None): A name for this layer(optional). If set None, the layer
+                        will be named automatically.
+     Returns:
+        output(${out_type}): ${out_comment}
+    """
+    helper = LayerHelper('brelu', **locals())
+    out = helper.create_tmp_variable(dtype=x.dtype)
+    helper.append_op(
+        type='brelu',
+        inputs={'X': x},
+        outputs={'Out': out},
+        attrs={'t_min': t_min,
+               't_max': t_max})
+    return out
+
+
+@templatedoc()
+def leaky_relu(x, alpha=0.02, name=None):
+    """
+    ${comment}
+    Args:
+        x(${x_type}): ${x_comment}
+        alpha(${alpha_type}|0.02): ${alpha_comment}
+        name(str|None): A name for this layer(optional). If set None, the layer
+                        will be named automatically.
+     Returns:
+        output(${out_type}): ${out_comment}
+    """
+    helper = LayerHelper('leaky_relu', **locals())
+    out = helper.create_tmp_variable(dtype=x.dtype)
+    helper.append_op(
+        type='leaky_relu',
+        inputs={'X': x},
+        outputs={'Out': out},
+        attrs={'alpha': alpha})
+    return out
+
+
+@templatedoc()
+def soft_relu(x, threshold=40.0, name=None):
+    """
+    ${comment}
+    Args:
+        x(${x_type}): ${x_comment}
+        threshold(${threshold_type}|40.0): ${threshold_comment}
+        name(str|None): A name for this layer(optional). If set None, the layer
+                        will be named automatically.
+     Returns:
+        output(${out_type}): ${out_comment}
+    """
+    helper = LayerHelper('soft_relu', **locals())
+    out = helper.create_tmp_variable(dtype=x.dtype)
+    helper.append_op(
+        type='soft_relu',
+        inputs={'X': x},
+        outputs={'Out': out},
+        attrs={'threshold': threshold})
+    return out
+
+
 def flatten(x, axis=1, name=None):
     """
     **Flatten layer**

python/paddle/fluid/layers/ops.py

@@ -17,9 +17,6 @@ from .layer_function_generator import generate_layer_fn, generate_layer_fn_noatt
 
 __activations__ = [
     'softshrink',
-    'brelu',
-    'leaky_relu',
-    'soft_relu',
     'elu',
     'relu6',
     'pow',