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+```console
+$ 04_04_custom_derive --help
+clap [..]
+A simple to use, efficient, and full-featured Command Line Argument Parser
+
+USAGE:
+    04_04_custom_derive[EXE] [OPTIONS] [INPUT_FILE]
+
+ARGS:
+    <INPUT_FILE>    some regular input
+
+OPTIONS:
+    -c <CONFIG>                
+    -h, --help                 Print help information
+        --major                auto inc major
+        --minor                auto inc minor
+        --patch                auto inc patch
+        --set-ver <VER>        set version manually
+        --spec-in <SPEC_IN>    some special input argument
+    -V, --version              Print version information
+
+$ 04_04_custom_derive
+? failed
+error: Can only modify one version field
+
+USAGE:
+    clap [OPTIONS] [INPUT_FILE]
+
+For more information try --help
+
+$ 04_04_custom_derive --major
+Version: 2.2.3
+
+$ 04_04_custom_derive --major --minor
+? failed
+error: Can only modify one version field
+
+USAGE:
+    clap [OPTIONS] [INPUT_FILE]
+
+For more information try --help
+
+$ 04_04_custom_derive --major -c config.toml
+? failed
+Version: 2.2.3
+error: INPUT_FILE or --spec-in is required when using --config
+
+USAGE:
+    clap [OPTIONS] [INPUT_FILE]
+
+For more information try --help
+
+$ 04_04_custom_derive --major -c config.toml --spec-in input.txt
+Version: 2.2.3
+Doing work using input input.txt and config config.toml
+
+```