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+/*! \page page_filter filter Signal Processing Blocks
+
+\section Introduction
+
+This is the gr-filter package. It contains signal processing blocks to
+perform filtering operations.
+
+The Python namespace is in gnuradio.filter, which would be normally
+imported as:
+
+\code
+    from gnuradio import filter
+\endcode
+
+See the Doxygen documentation for details about the blocks available
+in this package. A quick listing of the details can be found in Python
+after importing by using:
+
+\code
+    help(filter)
+\endcode
+
+\section Dependencies
+
+The filter blocks depend on \ref page_fft.
+
+*/