+def _AppendIf(container, condition, value):
+ """Appends to a list if a condition evaluates to truth.
+
+ """
+ if condition:
+ container.append(value)
+
+ return condition
+
+
+def _AppendDryRunIf(container, condition):
+ """Appends a "dry-run" parameter if a condition evaluates to truth.
+
+ """
+ return _AppendIf(container, condition, (_QPARAM_DRY_RUN, 1))
+
+
+def _AppendForceIf(container, condition):
+ """Appends a "force" parameter if a condition evaluates to truth.
+
+ """
+ return _AppendIf(container, condition, (_QPARAM_FORCE, 1))
+
+