diff --git a/pyproject.toml b/pyproject.toml
index b8a2a3b..a3fab4f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,7 +18,7 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 name = "slurmutils"
-version = "0.2.0"
+version = "0.3.0"
 description = "Utilities and APIs for interfacing with the Slurm workload manager."
 repository = "https://github.com/canonical/slurmutils"
 authors = ["Jason C. Nucciarone <jason.nucciarone@canonical.com>"]
diff --git a/slurmutils/editors/_editor.py b/slurmutils/editors/_editor.py
index b8871c1..634213a 100644
--- a/slurmutils/editors/_editor.py
+++ b/slurmutils/editors/_editor.py
@@ -161,7 +161,7 @@ def parse_model(line: str, pocket: Union[Dict, List], model) -> None:
         # Word in front of the first `=` denotes the parent configuration knob key.
         option, value = token.split("=", maxsplit=1)
         if hasattr(model, attr := _pascal2snake(option)):
-            if attr in model._callbacks and (callback := model._callbacks[attr].parse) is not None:
+            if attr in model.callbacks and (callback := model.callbacks[attr].parse) is not None:
                 holder.update({option: callback(value)})
             else:
                 holder.update({option: value})
@@ -195,7 +195,7 @@ def marshal_model(
         # rely on a mutable default in the function signature.
         ignore = set()
 
-    if primary_key := model._primary_key:
+    if primary_key := model.primary_key:
         attr = _pascal2snake(primary_key)
         primary_value = getattr(model, attr)
         data = {primary_key: primary_value, **model.dict()[primary_value]}
@@ -206,8 +206,8 @@ def marshal_model(
         if option not in ignore:
             if hasattr(model, attr := _pascal2snake(option)):
                 if (
-                    attr in model._callbacks
-                    and (callback := model._callbacks[attr].marshal) is not None
+                    attr in model.callbacks
+                    and (callback := model.callbacks[attr].marshal) is not None
                 ):
                     value = callback(value)
 
diff --git a/slurmutils/models/_model.py b/slurmutils/models/_model.py
index 9006bad..56d3762 100644
--- a/slurmutils/models/_model.py
+++ b/slurmutils/models/_model.py
@@ -227,7 +227,7 @@ def __repr__(self):
 
     @property
     @abstractmethod
-    def _primary_key(self) -> Optional[str]:
+    def primary_key(self) -> Optional[str]:
         """Primary key for data model.
 
         A primary key is required for data models that have a unique identifier
@@ -245,7 +245,7 @@ def _primary_key(self) -> Optional[str]:
 
     @property
     @abstractmethod
-    def _callbacks(self) -> MappingProxyType:
+    def callbacks(self) -> MappingProxyType:
         """Store callbacks.
 
         This map will be queried during parsing and marshalling to determine if
diff --git a/slurmutils/models/slurm.py b/slurmutils/models/slurm.py
index fed7fc8..5e67235 100644
--- a/slurmutils/models/slurm.py
+++ b/slurmutils/models/slurm.py
@@ -49,8 +49,8 @@ def __init__(self, **kwargs):
         super().__init__()
         self._register.update({kwargs.pop("NodeName"): {**kwargs}})
 
-    _primary_key = "NodeName"
-    _callbacks = MappingProxyType(
+    primary_key = "NodeName"
+    callbacks = MappingProxyType(
         {
             "cpu_spec_list": CommaSeparatorCallback,
             "features": CommaSeparatorCallback,
@@ -91,8 +91,8 @@ class DownNodes(BaseModel):
     the slurm.conf manpage. `man slurm.conf.5`
     """
 
-    _primary_key = None
-    _callbacks = MappingProxyType(
+    primary_key = None
+    callbacks = MappingProxyType(
         {
             "down_nodes": CommaSeparatorCallback,
             "reason": ReasonCallback,
@@ -115,8 +115,8 @@ def __init__(self, **kwargs):
         super().__init__()
         self._register.update({kwargs.pop("FrontendName"): {**kwargs}})
 
-    _primary_key = "FrontendName"
-    _callbacks = MappingProxyType(
+    primary_key = "FrontendName"
+    callbacks = MappingProxyType(
         {
             "allow_groups": CommaSeparatorCallback,
             "allow_users": CommaSeparatorCallback,
@@ -148,8 +148,8 @@ def __init__(self, **kwargs):
         super().__init__()
         self._register.update({kwargs.pop("NodeSet"): {**kwargs}})
 
-    _primary_key = "NodeSet"
-    _callbacks = MappingProxyType({"nodes": CommaSeparatorCallback})
+    primary_key = "NodeSet"
+    callbacks = MappingProxyType({"nodes": CommaSeparatorCallback})
 
     node_set = property(*primary_key_descriptors())
     feature = property(*_nodeset_descriptors("Feature"))
@@ -167,8 +167,8 @@ def __init__(self, **kwargs):
         super().__init__()
         self._register.update({kwargs.pop("PartitionName"): {**kwargs}})
 
-    _primary_key = "PartitionName"
-    _callbacks = MappingProxyType(
+    primary_key = "PartitionName"
+    callbacks = MappingProxyType(
         {
             "alloc_nodes": CommaSeparatorCallback,
             "allow_accounts": CommaSeparatorCallback,
@@ -465,8 +465,8 @@ class SlurmConfig(BaseModel):
     the slurm.conf manpage. `man slurm.conf.5`
     """
 
-    _primary_key = None
-    _callbacks = MappingProxyType(
+    primary_key = None
+    callbacks = MappingProxyType(
         {
             "acct_storage_external_host": CommaSeparatorCallback,
             "acct_storage_param": SlurmDictCallback,
diff --git a/slurmutils/models/slurmdbd.py b/slurmutils/models/slurmdbd.py
index bf3b4e2..4473578 100644
--- a/slurmutils/models/slurmdbd.py
+++ b/slurmutils/models/slurmdbd.py
@@ -32,8 +32,8 @@ class SlurmdbdConfig(BaseModel):
     the slurmdbd.conf manpage. `man slurmdbd.conf.5`
     """
 
-    _primary_key = None
-    _callbacks = MappingProxyType(
+    primary_key = None
+    callbacks = MappingProxyType(
         {
             "auth_alt_types": CommaSeparatorCallback,
             "auth_alt_parameters": SlurmDictCallback,
diff --git a/tox.ini b/tox.ini
index c2dcebb..0141112 100644
--- a/tox.ini
+++ b/tox.ini
@@ -63,11 +63,8 @@ commands =
 description = Publish slurmutils to PyPI using poetry.
 allowlist_externals =
     /usr/bin/rm
-    /usr/bin/poetry
 deps =
-    twine
-    setuptools
-    wheel
+    poetry
 commands =
     rm -rf {toxinidir}/dist
     poetry build