prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Get rid of netket::Qubits class
  `netket::Qubits` is really just a `CustomHilbert` with `localstates = {0.0, 1.0}`. No need for code duplication.
  
  </issue>
  <code>
  [start of netket/hilbert.py]
  1 from ._C_netket.hilbert import *
  2
  [end of netket/hilbert.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/netket/hilbert.py b/netket/hilbert.py
  --- a/netket/hilbert.py
  +++ b/netket/hilbert.py
  @@ -1 +1,22 @@
   from ._C_netket.hilbert import *
  +
  +
  +def Qubit(graph):
  +    """
  +    Constructs a new ``Qubit`` given a graph.
  +
  +    Args:
  +        graph: Graph representation of sites.
  +
  +    Examples:
  +        Simple qubit hilbert space.
  +
  +        ```python
  +        >>> from netket.graph import Hypercube
  +        >>> from netket.hilbert import Qubit
  +        >>> g = Hypercube(length=10,n_dim=2,pbc=True)
  +        >>> hi = Qubit(graph=g)
  +        >>> print(hi.size)
  +        100
  +    """
  +    return CustomHilbert(graph, local_states=[0, 1])
  
verification_info: {"golden_diff": "diff --git a/netket/hilbert.py b/netket/hilbert.py\n--- a/netket/hilbert.py\n+++ b/netket/hilbert.py\n@@ -1 +1,22 @@\n from ._C_netket.hilbert import *\n+\n+\n+def Qubit(graph):\n+    \"\"\"\n+    Constructs a new ``Qubit`` given a graph.\n+\n+    Args:\n+        graph: Graph representation of sites.\n+\n+    Examples:\n+        Simple qubit hilbert space.\n+\n+        ```python\n+        >>> from netket.graph import Hypercube\n+        >>> from netket.hilbert import Qubit\n+        >>> g = Hypercube(length=10,n_dim=2,pbc=True)\n+        >>> hi = Qubit(graph=g)\n+        >>> print(hi.size)\n+        100\n+    \"\"\"\n+    return CustomHilbert(graph, local_states=[0, 1])\n", "issue": "Get rid of netket::Qubits class\n`netket::Qubits` is really just a `CustomHilbert` with `localstates = {0.0, 1.0}`. No need for code duplication.\n", "before_files": [{"content": "from ._C_netket.hilbert import *\n", "path": "netket/hilbert.py"}]}