fixed black in spatial

src/vector/_compute/spatial/costheta.py

@@ -4,9 +4,10 @@
 # or https://github.com/scikit-hep/vector for details.
 
 """
+Property method `costheta` for the cosine theta coordinate of a spatial vector.
+
 .. code-block:: python
 
-    @property
     Spatial.costheta(self)
 """
 

src/vector/_compute/spatial/cottheta.py

@@ -4,9 +4,10 @@
 # or https://github.com/scikit-hep/vector for details.
 
 """
+Property method `cottheta` for the cotangent theta coordinate of a spatial vector.
+
 .. code-block:: python
 
-    @property
     Spatial.cottheta(self)
 """
 

src/vector/_compute/spatial/eta.py

@@ -4,9 +4,10 @@
 # or https://github.com/scikit-hep/vector for details.
 
 """
+Property method `eta` for the pseudorapidity of a spatial vector.
+
 .. code-block:: python
 
-    @property
     Spatial.eta(self)
 """
 

src/vector/_compute/spatial/mag.py

@@ -4,9 +4,10 @@
 # or https://github.com/scikit-hep/vector for details.
 
 """
+Property method `mag` for the magnitude of a spatial vector or an array of vectors.
+
 .. code-block:: python
 
-    @property
     Spatial.mag(self)
 """
 

src/vector/_compute/spatial/mag2.py

@@ -4,9 +4,10 @@
 # or https://github.com/scikit-hep/vector for details.
 
 """
+Property method `mag2` for the squared magnitude of a spatial vector.
+
 .. code-block:: python
 
-    @property
     Spatial.mag2(self)
 """
 

src/vector/_compute/spatial/theta.py

@@ -4,9 +4,10 @@
 # or https://github.com/scikit-hep/vector for details.
 
 """
+Property method `theta` for the polar angle of a spatial vector.
+
 .. code-block:: python
 
-    @property
     Spatial.theta(self)
 """
 

src/vector/_compute/spatial/z.py

@@ -4,9 +4,10 @@
 # or https://github.com/scikit-hep/vector for details.
 
 """
+Property method `z` for the z component of a spatial vector.
+
 .. code-block:: python
 
-    @property
     Spatial.z(self)
 """