refactor: even less boilerplate

Author: ntamas

doc/fragments/igraph_create.txt

@@ -0,0 +1,9 @@
+Creates a graph from the given edge list.
+
+Parameters:
+    edges: the list of edges in the graph
+    n: the number of vertices in the graph if it cannot be inferred from
+        the maximum edge ID in the edge list
+
+Returns:
+    the newly created graph

doc/fragments/igraph_empty.txt

@@ -3,3 +3,6 @@ Creates an empty graph with the given number of vertices.
 Parameters:
     n: the number of vertices
     directed: whether the graph is directed
+
+Returns:
+    the newly created graph

src/igraph_ctypes/constructors.py

@@ -1,7 +1,13 @@
 from typing import Iterable, Union
 
 from .graph import Graph
-from ._internal.functions import create, empty, famous, grg_game, square_lattice
+from ._internal.functions import (
+    create as create_graph_from_edge_list,
+    empty as create_empty_graph,
+    famous as create_famous_graph,
+    grg_game,
+    square_lattice,
+)
 
 __all__ = (
     "create_empty_graph",
@@ -12,41 +18,6 @@
 )
 
 
-def create_empty_graph(n: int, directed: bool = False) -> Graph:
-    """Creates an empty graph with the given number of vertices.
-
-    Parameters:
-        n: the number of vertices
-        directed: whether the graph is directed
-    """
-    return empty(n, directed)
-
-
-def create_famous_graph(name: str) -> Graph:
-    """Creates one of the "famous" graphs embedded into igraph by name.
-
-    See the documentation of the ``igraph_famous()`` function in igraph's C core
-    for a list of names accepted by this function.
-
-    Parameters:
-        name: the name of the graph to construct
-    """
-    return famous(name)
-
-
-def create_graph_from_edge_list(
-    edges: Iterable[int], n: int = 0, directed: bool = False
-) -> Graph:
-    """Creates a graph from the given edge list.
-
-    Parameters:
-        edges: the list of edges in the graph
-        n: the number of vertices in the graph if it cannot be inferred from
-            the maximum edge ID in the edge list
-    """
-    return create(edges, n, directed)
-
-
 def create_square_lattice(
     dimvector: Iterable[int],
     nei: int = 1,