Commands available from the prompt:

:defn <var>       Show a variable's definition
:doc <term>       Show documentation
<code>            Evaluate a block of code
:help             Show help
:load <filename>  Load a file
:names            Show all names in current scope
:print <expr>     Print a string without the double quotes, interpreting special characters
:reload           Reloads the most recently loaded file
:test <property>  Test a property using random examples

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