brotli module loaded but doesn't work

["Michael A. Peters" <mpeters@xxxxxxxxxxxxxx>]

Apache 2.4.33 compiled from source (built as rpm) with --enable-brotli 
switch. CentOS 7.

[alice@localhost ~]$ rpm -ql httpd |grep brotli
/usr/lib64/httpd/modules/mod_brotli.so

[alice@localhost ~]$ brotli --version
brotli 1.0.4

[alice@localhost ~]$ ldd /usr/lib64/httpd/modules/mod_brotli.so
	linux-vdso.so.1 =>  (0x00007ffd5dde1000)
	libbrotlienc.so.1 => /lib64/libbrotlienc.so.1 (0x00007f8471931000)
	libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f8471715000)
	libc.so.6 => /lib64/libc.so.6 (0x00007f8471348000)
	libm.so.6 => /lib64/libm.so.6 (0x00007f8471046000)
	libbrotlicommon.so.1 => /lib64/libbrotlicommon.so.1 (0x00007f8470e26000)
	/lib64/ld-linux-x86-64.so.2 (0x00007f8471dbd000)

[alice@localhost ~]$ apachectl -M |grep brotli
 brotli_module (shared)
[alice@localhost ~]$

Looks good, the module is loaded. But - if I have:

<IfModule brotli_module>
  # Compression
  ## BrotliCompressionLevel: 0-11 (default: 11)
  BrotliCompressionLevel 10

  ## BrotliWindowSize: 10-24 (default: 22)
  BrotliWindowSize 22

  # Logging
  # Filter note
  BrotliFilterNote Input  brotli_in
  BrotliFilterNote Output brotli_out
  BrotliFilterNote Ratio  brotli_ratio

  #LogFormat '"%r" %{brotli_out}n/%{brotli_in}n (%{brotli_ratio}n)' brotli
  #CustomLog ${APACHE_LOG_DIR}/brotli_access.log brotli

  # Output filter
  AddOutputFilterByType BROTLI text/html text/plain text/css text/xml
  AddOutputFilterByType BROTLI text/css
  AddOutputFilterByType BROTLI application/x-javascript 
application/javascript
  AddOutputFilterByType BROTLI application/rss+xml
  AddOutputFilterByType BROTLI application/xml
  AddOutputFilterByType BROTLI application/json

  # Global output filer if necessary.
  # SetOutputFilter BROTLI
  # SetEnvIfNoCase Request_URI \.txt$ no-br

</IfModule>

then apache won't start:

[alice@localhost ~]$ apachectl -M
AH00526: Syntax error on line 4 of /etc/httpd/conf.d/brotli.conf:
Invalid command 'BrotliCompressionLevel', perhaps misspelled or defined 
by a module not included in the server configuration
[alice@localhost ~]$

Same for BrotliWindowSize if I comment out BrotliCompressionLevel.

Comment both out and I get:

[alice@localhost ~]$ apachectl -M
AH00526: Syntax error on line 19 of /etc/httpd/conf.d/brotli.conf:
Unknown filter provider BROTLI
[alice@localhost ~]$

Help ???

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