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diff --git a/shared-bindings/ulab/compare/__init__.pyi b/shared-bindings/ulab/compare/__init__.pyi
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+++ b/shared-bindings/ulab/compare/__init__.pyi
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+"""Comparison functions"""
+
+def clip(x1, x2, x3):
+    """
+    Constrain the values from ``x1`` to be between ``x2`` and ``x3``.
+    ``x2`` is assumed to be less than or equal to ``x3``.
+
+    Arguments may be ulab arrays or numbers.  All array arguments
+    must be the same size.  If the inputs are all scalars, a 1-element
+    array is returned.
+
+    Shorthand for ``ulab.maximum(x2, ulab.minimum(x1, x3))``"""
+    ...
+
+def maximum(x1, x2):
+    """
+    Compute the element by element maximum of the arguments.
+
+    Arguments may be ulab arrays or numbers.  All array arguments
+    must be the same size.  If the inputs are both scalars, a number is
+    returned"""
+    ...
+
+def minimum(x1, x2):
+    """Compute the element by element minimum of the arguments.
+
+    Arguments may be ulab arrays or numbers.  All array arguments
+    must be the same size.  If the inputs are both scalars, a number is
+    returned"""
+    ...
+
+def equal(x1, x2):
+    """Return an array of bool which is true where x1[i] == x2[i] and false elsewhere"""
+    ...
+
+def not_equal(x1, x2):
+    """Return an array of bool which is false where x1[i] == x2[i] and true elsewhere"""
+    ...