diff --git a/TJNetworkServer.dll b/TJNetworkServer.dll
deleted file mode 100644
index 9137911..0000000
Binary files a/TJNetworkServer.dll and /dev/null differ
diff --git a/demo.py b/demo.py
index fccfbff..2dd7d62 100644
--- a/demo.py
+++ b/demo.py
@@ -1,57 +1,184 @@
 from tjnetwork import *
 
-JUNCTION = 0
-RESERVOIR = 1
-TANK = 2
-PIPE = 1
-NODE_COUNT = 0
-LINK_COUNT = 2
 
-create_project("net1")
-open_project("net1")
+def demo_snapshot():
+    p = "demo_snapshot"
 
-add_node("net1", "node-1", JUNCTION)
+    print(p)
 
-undo("net1")
-redo("net1")
+    if is_project_open(p):
+        close_project(p)
 
-add_node("net1", "node-2", RESERVOIR)
-add_node("net1", "node-3", TANK)
+    if have_project(p):
+        delete_project(p)
 
-set_node_coord("net1", "node-3", 10.0, 10.0)
+    create_project(p)
+    open_project(p)
 
-delete_node("net1", "node-3")
-undo("net1")
+    add_junction(p, 'j-1', 10.0, 20.0, 30.0)
+    add_junction(p, 'j-2', 10.0, 20.0, 30.0)
+    add_junction(p, 'j-3', 10.0, 20.0, 30.0)
+    add_junction(p, 'j-4', 10.0, 20.0, 30.0)
+    take_snapshot(p, "1-2-3-4")
 
-set_node_coord("net1", "node-1", 10.0, 10.0)
-undo("net1")
-redo("net1")
+    undo(p)
+    undo(p)
+    undo(p)
+    undo(p)
 
-set_node_coord("net1", "node-2", 20.0, 20.0)
+    add_junction(p, 'j-5', 10.0, 20.0, 30.0)
+    add_junction(p, 'j-6', 10.0, 20.0, 30.0) 
+    add_junction(p, 'j-7', 10.0, 20.0, 30.0) 
+    add_junction(p, 'j-8', 10.0, 20.0, 30.0)
+    take_snapshot(p, "5-6-7-8")
 
-add_link("net1", "link-1", PIPE, "node-1", "node-2")
+    print("before checkout, it should be 5, 6, 7, 8")
+    print(get_nodes(p))
 
-add_link("net1", "link-2", PIPE, "node-1", "node-3")
-undo("net1")
-redo("net1")
+    pick_snapshot(p, "1-2-3-4")
 
-add_link("net1", "link-3", PIPE, "node-2", "node-3")
-undo("net1")
+    print("after checkout, it should be 1, 2, 3, 4")
+    print(get_nodes(p))
 
-# this could fail since link-1 & link-2 ref node-1
-delete_node("net1", "node-1")
+    close_project(p)
+    delete_project(p)
 
-node_count = get_count("net1", NODE_COUNT)
-print(node_count.value)
-for i in range(1, node_count.value + 1):
-    node_id = get_node_id("net1", i)
-    print(node_id.value)
 
-link_count = get_count("net1", LINK_COUNT)
-print(link_count.value)
-for i in range(1, link_count.value + 1):
-    link_id = get_link_id("net1", i)
-    print(link_id.value)
+def demo_transaction():
+    p = "demo_transaction"
 
-close_project("net1")
-delete_project("net1")
\ No newline at end of file
+    print(p)
+
+    if is_project_open(p):
+        close_project(p)
+
+    if have_project(p):
+        delete_project(p)
+
+    create_project(p)
+    open_project(p)
+
+    add_junction(p, 'j-1', 10.0, 20.0, 30.0)
+    take_snapshot(p, "1")
+    add_junction(p, 'j-2', 10.0, 20.0, 30.0)
+    take_snapshot(p, "2")
+
+    start_transaction(p)
+
+    add_junction(p, 'j-3', 10.0, 20.0, 30.0)
+    take_snapshot(p, "3")
+    add_junction(p, 'j-4', 10.0, 20.0, 30.0)
+    take_snapshot(p, "4")
+
+    print("before rollback, it should be 1, 2, 3, 4")
+    print(get_nodes(p))
+
+    print("after rollback, it should be 1, 2")
+    abort_transaction(p)
+
+    print(get_nodes(p))
+
+    print(f"have snapshot 1: {have_snapshot(p, '1')}")
+    print(f"have snapshot 2: {have_snapshot(p, '2')}")
+    print(f"have snapshot 3: {have_snapshot(p, '3')}")
+    print(f"have snapshot 4: {have_snapshot(p, '4')}")
+
+    close_project(p)
+    delete_project(p)
+
+
+def demo_1_title():
+    p = "demo_1_title"
+
+    print(p)
+
+    if is_project_open(p):
+        close_project(p)
+
+    if have_project(p):
+        delete_project(p)
+
+    create_project(p)
+    open_project(p)
+
+    print(get_title(p)) # 
+
+    set_title(p, "title")
+    print(get_title(p)) # title
+
+    set_title(p, "test")
+    print(get_title(p)) # test
+
+    undo(p)
+    print(get_title(p)) # title
+
+    undo(p)
+    print(get_title(p)) # 
+
+    close_project(p)
+    delete_project(p)
+
+
+def demo_2_junctions():
+    p = "demo_2_junctions"
+
+    print(p)
+
+    if is_project_open(p):
+        close_project(p)
+
+    if have_project(p):
+        delete_project(p)
+
+    create_project(p)
+    open_project(p)
+
+    j = 'j-1'
+    print(get_junction_coord(p, j)) # None
+    print(get_junction_elevation(p, j)) # None
+    print(get_junction_demand(p, j)) # None
+    print(get_junction_pattern(p, j)) # None
+
+    add_junction(p, j, 10.0, 20.0, 30.0) 
+    print(get_junction_coord(p, j)) # {'x': 10.0, 'y': 20.0}
+    print(get_junction_elevation(p, j)) # 30.0
+    print(get_junction_demand(p, j)) # NULL
+    print(get_junction_pattern(p, j)) # NULL
+
+    set_junction_demand(p, j, 100.0)
+    print(get_junction_demand(p, j)) # 100.0
+
+    undo(p)
+    print(get_junction_demand(p, j)) # NULL
+
+    undo(p)
+    print(get_junction_coord(p, j)) # None
+    print(get_junction_elevation(p, j)) # None
+    print(get_junction_demand(p, j)) # None
+    print(get_junction_pattern(p, j)) # None
+
+    add_junction(p, j, 10.0, 20.0, 30.0)
+    print(get_junction_coord(p, j)) # {'x': 10.0, 'y': 20.0}
+    print(get_junction_elevation(p, j)) # 30.0
+    print(get_junction_demand(p, j)) # NULL
+    print(get_junction_pattern(p, j)) # NULL
+
+    set_junction_coord(p, j, 100.0, 200.0)
+    print(get_junction_coord(p, j)) # {'x': 100.0, 'y': 200.0}
+
+    undo(p)
+    print(get_junction_coord(p, j)) # {'x': 10.0, 'y': 20.0}
+
+    redo(p)
+    print(get_junction_coord(p, j)) # {'x': 100.0, 'y': 200.0}
+
+    close_project(p)
+    delete_project(p)
+
+
+if __name__ == "__main__":
+    demo_snapshot()
+    demo_transaction()
+    demo_1_title()
+    demo_2_junctions()
+    pass
diff --git a/epanet2.dll b/epanet2.dll
deleted file mode 100644
index 3bb592e..0000000
Binary files a/epanet2.dll and /dev/null differ
diff --git a/libpq.dll b/libpq.dll
deleted file mode 100644
index 8978a3d..0000000
Binary files a/libpq.dll and /dev/null differ
diff --git a/main.py b/main.py
index c110ddb..966c375 100644
--- a/main.py
+++ b/main.py
@@ -7,7 +7,7 @@ from fastapi import FastAPI, File, UploadFile
 from pydantic import BaseModel
 from starlette.responses import FileResponse, JSONResponse
 from fastapi import FastAPI, Response, status
-from tjnetwork_new import *
+from tjnetwork import *
 
 JUNCTION = 0
 RESERVOIR = 1
diff --git a/new_demo.py b/new_demo.py
deleted file mode 100644
index 1b50e4c..0000000
--- a/new_demo.py
+++ /dev/null
@@ -1,184 +0,0 @@
-from tjnetwork_new import *
-
-
-def demo_snapshot():
-    p = "demo_snapshot"
-
-    print(p)
-
-    if is_project_open(p):
-        close_project(p)
-
-    if have_project(p):
-        delete_project(p)
-
-    create_project(p)
-    open_project(p)
-
-    add_junction(p, 'j-1', 10.0, 20.0, 30.0)
-    add_junction(p, 'j-2', 10.0, 20.0, 30.0)
-    add_junction(p, 'j-3', 10.0, 20.0, 30.0)
-    add_junction(p, 'j-4', 10.0, 20.0, 30.0)
-    take_snapshot(p, "1-2-3-4")
-
-    undo(p)
-    undo(p)
-    undo(p)
-    undo(p)
-
-    add_junction(p, 'j-5', 10.0, 20.0, 30.0)
-    add_junction(p, 'j-6', 10.0, 20.0, 30.0) 
-    add_junction(p, 'j-7', 10.0, 20.0, 30.0) 
-    add_junction(p, 'j-8', 10.0, 20.0, 30.0)
-    take_snapshot(p, "5-6-7-8")
-
-    print("before checkout, it should be 5, 6, 7, 8")
-    print(get_nodes(p))
-
-    pick_snapshot(p, "1-2-3-4")
-
-    print("after checkout, it should be 1, 2, 3, 4")
-    print(get_nodes(p))
-
-    close_project(p)
-    delete_project(p)
-
-
-def demo_transaction():
-    p = "demo_transaction"
-
-    print(p)
-
-    if is_project_open(p):
-        close_project(p)
-
-    if have_project(p):
-        delete_project(p)
-
-    create_project(p)
-    open_project(p)
-
-    add_junction(p, 'j-1', 10.0, 20.0, 30.0)
-    take_snapshot(p, "1")
-    add_junction(p, 'j-2', 10.0, 20.0, 30.0)
-    take_snapshot(p, "2")
-
-    start_transaction(p)
-
-    add_junction(p, 'j-3', 10.0, 20.0, 30.0)
-    take_snapshot(p, "3")
-    add_junction(p, 'j-4', 10.0, 20.0, 30.0)
-    take_snapshot(p, "4")
-
-    print("before rollback, it should be 1, 2, 3, 4")
-    print(get_nodes(p))
-
-    print("after rollback, it should be 1, 2")
-    abort_transaction(p)
-
-    print(get_nodes(p))
-
-    print(f"have snapshot 1: {have_snapshot(p, '1')}")
-    print(f"have snapshot 2: {have_snapshot(p, '2')}")
-    print(f"have snapshot 3: {have_snapshot(p, '3')}")
-    print(f"have snapshot 4: {have_snapshot(p, '4')}")
-
-    close_project(p)
-    delete_project(p)
-
-
-def demo_1_title():
-    p = "demo_1_title"
-
-    print(p)
-
-    if is_project_open(p):
-        close_project(p)
-
-    if have_project(p):
-        delete_project(p)
-
-    create_project(p)
-    open_project(p)
-
-    print(get_title(p)) # 
-
-    set_title(p, "title")
-    print(get_title(p)) # title
-
-    set_title(p, "test")
-    print(get_title(p)) # test
-
-    undo(p)
-    print(get_title(p)) # title
-
-    undo(p)
-    print(get_title(p)) # 
-
-    close_project(p)
-    delete_project(p)
-
-
-def demo_2_junctions():
-    p = "demo_2_junctions"
-
-    print(p)
-
-    if is_project_open(p):
-        close_project(p)
-
-    if have_project(p):
-        delete_project(p)
-
-    create_project(p)
-    open_project(p)
-
-    j = 'j-1'
-    print(get_junction_coord(p, j)) # None
-    print(get_junction_elevation(p, j)) # None
-    print(get_junction_demand(p, j)) # None
-    print(get_junction_pattern(p, j)) # None
-
-    add_junction(p, j, 10.0, 20.0, 30.0) 
-    print(get_junction_coord(p, j)) # {'x': 10.0, 'y': 20.0}
-    print(get_junction_elevation(p, j)) # 30.0
-    print(get_junction_demand(p, j)) # NULL
-    print(get_junction_pattern(p, j)) # NULL
-
-    set_junction_demand(p, j, 100.0)
-    print(get_junction_demand(p, j)) # 100.0
-
-    undo(p)
-    print(get_junction_demand(p, j)) # NULL
-
-    undo(p)
-    print(get_junction_coord(p, j)) # None
-    print(get_junction_elevation(p, j)) # None
-    print(get_junction_demand(p, j)) # None
-    print(get_junction_pattern(p, j)) # None
-
-    add_junction(p, j, 10.0, 20.0, 30.0)
-    print(get_junction_coord(p, j)) # {'x': 10.0, 'y': 20.0}
-    print(get_junction_elevation(p, j)) # 30.0
-    print(get_junction_demand(p, j)) # NULL
-    print(get_junction_pattern(p, j)) # NULL
-
-    set_junction_coord(p, j, 100.0, 200.0)
-    print(get_junction_coord(p, j)) # {'x': 100.0, 'y': 200.0}
-
-    undo(p)
-    print(get_junction_coord(p, j)) # {'x': 10.0, 'y': 20.0}
-
-    redo(p)
-    print(get_junction_coord(p, j)) # {'x': 100.0, 'y': 200.0}
-
-    close_project(p)
-    delete_project(p)
-
-
-if __name__ == "__main__":
-    demo_snapshot()
-    demo_transaction()
-    demo_1_title()
-    demo_2_junctions()
-    pass
diff --git a/python-3.10.6-amd64.exe b/python-3.10.6-amd64.exe
deleted file mode 100644
index 0252738..0000000
Binary files a/python-3.10.6-amd64.exe and /dev/null differ
diff --git a/pytjnetwork.pyd b/pytjnetwork.pyd
deleted file mode 100644
index d195915..0000000
Binary files a/pytjnetwork.pyd and /dev/null differ
diff --git a/tjnetwork.py b/tjnetwork.py
index 3309876..ed263be 100644
--- a/tjnetwork.py
+++ b/tjnetwork.py
@@ -1,98 +1,170 @@
-import ctypes
+import api
 
-max_name_len = 32
 
-server = ctypes.windll.LoadLibrary("./TJNetworkServer.dll")
+############################################################
+# ChangeSet
+############################################################
 
-class LinkNodes:
-    def __init__(self, from_node, to_node):
-        self.from_node = from_node
-        self.to_node = to_node
+ChangeSet = api.ChangeSet
 
-class Point:
-    def __init__(self, x, y):
-        self.x = x
-        self.y = y
 
-class Result:
-    def __init__(self, ec, v):
-        self.error_code = ec
-        self.value = v
+############################################################
+# enum
+############################################################
 
-def c_str(value):
-    return ctypes.c_char_p(value.encode())
+JUNCTION = api.JUNCTION
+RESERVOIR = api.RESERVOIR
+TANK = api.TANK
+PIPE = api.PIPE
+PUMP = api.PUMP
+VALVE = api.VALVE
 
-def c_ref(value):
-    return ctypes.byref(value)
 
-# have database
-def have_project(name):
-    yes = 406
-    ec = server.TJ_haveproject(c_str(name))
-    return True if ec == yes else False
+############################################################
+# project
+############################################################
 
-# create database
-def create_project(name):
-    return server.TJ_createproject(c_str(name))
+def have_project(name: str) -> bool:
+    return api.have_project(name)
 
-# delete database
-def delete_project(name):
-    return server.TJ_deleteproject(c_str(name))
+def create_project(name: str) -> None:
+    return api.create_project(name)
 
-# create runtime project and connect to database
-def open_project(name):
-    return server.TJ_openproject(c_str(name))
+def delete_project(name: str) -> None:
+    return api.delete_project(name)
 
-# delete runtime project and disconnect from database
-def close_project(name):
-    return server.TJ_closeproject(c_str(name))
+def is_project_open(name: str) -> bool:
+    return api.is_project_open(name)
 
-def undo(name):
-    return server.TJ_undo(c_str(name))
+def open_project(name: str) -> None:
+    return api.open_project(name)
 
-def redo(name):
-    return server.TJ_redo(c_str(name))
+def close_project(name: str) -> None:
+    return api.close_project(name)
 
-def get_count(name, object_type):
-    count = ctypes.c_int()
-    ec = server.TJ_getcount(c_str(name), object_type, c_ref(count))
-    return Result(ec, count.value)
+def copy_project(source: str, new: str) -> None:
+    return api.copy_project(source, new)
 
-def add_node(name, node_id, node_type):
-    return server.TJ_addnode(c_str(name), c_str(node_id), node_type)
 
-def delete_node(name, node_id):
-    return server.TJ_deletenode(c_str(name), c_str(node_id))
+############################################################
+# operation
+############################################################
 
-def get_node_id(name, node_index):
-    id = ctypes.create_string_buffer(max_name_len)
-    ec = server.TJ_getnodeid(c_str(name), node_index, c_ref(id))
-    return Result(ec, id.value)
+def undo(name: str) -> None:
+    return api.undo(name)
 
-def get_node_coord(name, node_id):
-    x = ctypes.c_double()
-    y = ctypes.c_double()
-    ec = server.TJ_getnodecoord(c_str(name), c_str(node_id), c_ref(x), c_ref(y))
-    return Result(ec, Point(x.value, y.value))
+def redo(name: str) -> None:
+    return api.redo(name)
 
-def set_node_coord(name, node_id, x, y):
-    func = server.TJ_setnodecoord
-    func.argtypes = [ctypes.c_char_p, ctypes.c_char_p, ctypes.c_double, ctypes.c_double]
-    return func(c_str(name), c_str(node_id), x, y)
+def have_snapshot(name: str, tag: str) -> bool:
+    return api.have_snapshot(name, tag)
 
-def add_link(name, link_id, link_type, from_node, to_node):
-    return server.TJ_addlink(c_str(name), c_str(link_id), link_type, c_str(from_node), c_str(to_node))
+def take_snapshot(name: str, tag: str) -> None:
+    return api.take_snapshot(name, tag)
 
-def delete_link(name, link_id):
-    return server.TJ_deletelink(c_str(name), c_str(link_id))
+def pick_snapshot(name: str, tag: str) -> None:
+    return api.pick_snapshot(name, tag)
 
-def get_link_id(name, link_index):
-    id = ctypes.create_string_buffer(max_name_len)
-    ec = server.TJ_getlinkid(c_str(name), link_index, c_ref(id))
-    return Result(ec, id.value)
+def have_transaction(name: str) -> bool:
+    return api.have_transaction(name)
 
-def get_link_nodes(name, link_id):
-    from_node = ctypes.create_string_buffer(max_name_len)
-    to_node = ctypes.create_string_buffer(max_name_len)
-    ec = server.TJ_getlinknodes(c_str(name), c_str(link_id), c_ref(from_node), c_ref(to_node))
-    return Result(ec, LinkNodes(from_node.value, to_node.value))
+def start_transaction(name: str, strict: bool = False) -> None:
+    return api.start_transaction(name, strict)
+
+def commit_transaction(name: str) -> None:
+    return api.commit_transaction(name)
+
+def abort_transaction(name: str) -> None:
+    return api.abort_transaction(name)
+
+############################################################
+# type
+############################################################
+
+def is_node(name: str, node_id: str) -> bool:
+    return api.is_node(name, node_id)
+
+def is_junction(name: str, node_id: str) -> bool:
+    return api.is_junction(name, node_id)
+
+def is_reservoir(name: str, node_id: str) -> bool:
+    return api.is_reservoir(name, node_id)
+
+def is_tank(name: str, node_id: str) -> bool:
+    return api.is_tank(name, node_id)
+
+def is_link(name: str, link_id: str) -> bool:
+    return api.is_link(name, link_id)
+
+def is_pipe(name: str, link_id: str) -> bool:
+    return api.is_pipe(name, link_id)
+
+def is_pump(name: str, link_id: str) -> bool:
+    return api.is_pump(name, link_id)
+
+def is_valve(name: str, link_id: str) -> bool:
+    return api.is_valve(name, link_id)
+
+def is_curve(name: str, curve_id: str) -> bool:
+    return api.is_curve(name, curve_id)
+
+def is_pattern(name: str, pattern_id: str) -> bool:
+    return api.is_pattern(name, pattern_id)
+
+def get_nodes(name: str) -> list[str]:
+    return api.get_nodes(name)
+
+def get_links(name: str) -> list[str]:
+    return api.get_links(name)
+
+def get_curves(name: str) -> list[str]:
+    return api.get_curves(name)
+
+def get_patterns(name: str) -> list[str]:
+    return api.get_patterns(name)
+
+
+############################################################
+# title 1.[TITLE]
+############################################################
+
+def set_title(name: str, title: str) -> ChangeSet:
+    return api.set_title(name, title)
+
+def get_title(name: str) -> str:
+    return api.get_title(name)
+
+
+############################################################
+# junction 2.[JUNCTIONS]
+############################################################
+
+def add_junction(name: str, junction_id: str, x: float, y: float, elevation: float) -> ChangeSet:
+    return api.add_junction(name, junction_id, x, y, elevation)
+
+def delete_junction(name: str, junction_id: str) -> ChangeSet:
+    return api.delete_junction(name, junction_id)
+
+def get_junction_elevation(name: str, junction_id: str) -> float | None:
+    return api.get_junction_elevation(name, junction_id)
+
+def get_junction_demand(name: str, junction_id: str) -> float | str | None:
+    return api.get_junction_demand(name, junction_id)
+
+def get_junction_pattern(name: str, junction_id: str) -> str | None:
+    return api.get_junction_pattern(name, junction_id)
+
+def get_junction_coord(name: str, junction_id: str) -> dict[str, float] | None:
+    return api.get_junction_coord(name, junction_id)
+
+def set_junction_elevation(name: str, junction_id: str, elevation: float) -> ChangeSet:
+    return api.set_junction_elevation(name, junction_id, elevation)
+
+def set_junction_demand(name: str, junction_id: str, demand: float) -> ChangeSet:
+    return api.set_junction_demand(name, junction_id, demand)
+
+def set_junction_pattern(name: str, junction_id: str, pattern: str) -> ChangeSet:
+    return api.set_junction_pattern(name, junction_id, pattern)
+
+def set_junction_coord(name: str, junction_id: str, x: float, y: float) -> ChangeSet:
+    return api.set_junction_coord(name, junction_id, x, y)
diff --git a/tjnetwork_new.py b/tjnetwork_new.py
deleted file mode 100644
index ed263be..0000000
--- a/tjnetwork_new.py
+++ /dev/null
@@ -1,170 +0,0 @@
-import api
-
-
-############################################################
-# ChangeSet
-############################################################
-
-ChangeSet = api.ChangeSet
-
-
-############################################################
-# enum
-############################################################
-
-JUNCTION = api.JUNCTION
-RESERVOIR = api.RESERVOIR
-TANK = api.TANK
-PIPE = api.PIPE
-PUMP = api.PUMP
-VALVE = api.VALVE
-
-
-############################################################
-# project
-############################################################
-
-def have_project(name: str) -> bool:
-    return api.have_project(name)
-
-def create_project(name: str) -> None:
-    return api.create_project(name)
-
-def delete_project(name: str) -> None:
-    return api.delete_project(name)
-
-def is_project_open(name: str) -> bool:
-    return api.is_project_open(name)
-
-def open_project(name: str) -> None:
-    return api.open_project(name)
-
-def close_project(name: str) -> None:
-    return api.close_project(name)
-
-def copy_project(source: str, new: str) -> None:
-    return api.copy_project(source, new)
-
-
-############################################################
-# operation
-############################################################
-
-def undo(name: str) -> None:
-    return api.undo(name)
-
-def redo(name: str) -> None:
-    return api.redo(name)
-
-def have_snapshot(name: str, tag: str) -> bool:
-    return api.have_snapshot(name, tag)
-
-def take_snapshot(name: str, tag: str) -> None:
-    return api.take_snapshot(name, tag)
-
-def pick_snapshot(name: str, tag: str) -> None:
-    return api.pick_snapshot(name, tag)
-
-def have_transaction(name: str) -> bool:
-    return api.have_transaction(name)
-
-def start_transaction(name: str, strict: bool = False) -> None:
-    return api.start_transaction(name, strict)
-
-def commit_transaction(name: str) -> None:
-    return api.commit_transaction(name)
-
-def abort_transaction(name: str) -> None:
-    return api.abort_transaction(name)
-
-############################################################
-# type
-############################################################
-
-def is_node(name: str, node_id: str) -> bool:
-    return api.is_node(name, node_id)
-
-def is_junction(name: str, node_id: str) -> bool:
-    return api.is_junction(name, node_id)
-
-def is_reservoir(name: str, node_id: str) -> bool:
-    return api.is_reservoir(name, node_id)
-
-def is_tank(name: str, node_id: str) -> bool:
-    return api.is_tank(name, node_id)
-
-def is_link(name: str, link_id: str) -> bool:
-    return api.is_link(name, link_id)
-
-def is_pipe(name: str, link_id: str) -> bool:
-    return api.is_pipe(name, link_id)
-
-def is_pump(name: str, link_id: str) -> bool:
-    return api.is_pump(name, link_id)
-
-def is_valve(name: str, link_id: str) -> bool:
-    return api.is_valve(name, link_id)
-
-def is_curve(name: str, curve_id: str) -> bool:
-    return api.is_curve(name, curve_id)
-
-def is_pattern(name: str, pattern_id: str) -> bool:
-    return api.is_pattern(name, pattern_id)
-
-def get_nodes(name: str) -> list[str]:
-    return api.get_nodes(name)
-
-def get_links(name: str) -> list[str]:
-    return api.get_links(name)
-
-def get_curves(name: str) -> list[str]:
-    return api.get_curves(name)
-
-def get_patterns(name: str) -> list[str]:
-    return api.get_patterns(name)
-
-
-############################################################
-# title 1.[TITLE]
-############################################################
-
-def set_title(name: str, title: str) -> ChangeSet:
-    return api.set_title(name, title)
-
-def get_title(name: str) -> str:
-    return api.get_title(name)
-
-
-############################################################
-# junction 2.[JUNCTIONS]
-############################################################
-
-def add_junction(name: str, junction_id: str, x: float, y: float, elevation: float) -> ChangeSet:
-    return api.add_junction(name, junction_id, x, y, elevation)
-
-def delete_junction(name: str, junction_id: str) -> ChangeSet:
-    return api.delete_junction(name, junction_id)
-
-def get_junction_elevation(name: str, junction_id: str) -> float | None:
-    return api.get_junction_elevation(name, junction_id)
-
-def get_junction_demand(name: str, junction_id: str) -> float | str | None:
-    return api.get_junction_demand(name, junction_id)
-
-def get_junction_pattern(name: str, junction_id: str) -> str | None:
-    return api.get_junction_pattern(name, junction_id)
-
-def get_junction_coord(name: str, junction_id: str) -> dict[str, float] | None:
-    return api.get_junction_coord(name, junction_id)
-
-def set_junction_elevation(name: str, junction_id: str, elevation: float) -> ChangeSet:
-    return api.set_junction_elevation(name, junction_id, elevation)
-
-def set_junction_demand(name: str, junction_id: str, demand: float) -> ChangeSet:
-    return api.set_junction_demand(name, junction_id, demand)
-
-def set_junction_pattern(name: str, junction_id: str, pattern: str) -> ChangeSet:
-    return api.set_junction_pattern(name, junction_id, pattern)
-
-def set_junction_coord(name: str, junction_id: str, x: float, y: float) -> ChangeSet:
-    return api.set_junction_coord(name, junction_id, x, y)
diff --git a/vcruntime140_1.dll b/vcruntime140_1.dll
deleted file mode 100644
index 3ebabde..0000000
Binary files a/vcruntime140_1.dll and /dev/null differ