help()
    Prints help text.

    Examples
    --------
    > help()


help( alias )
    Prints help text for a specified alias.

    Parameters
    ----------
    alias: any
        Alias (an object path string or reference).

    Examples
    --------
    > help( help )
    > help( 'help' )


help( property )
    Prints help text for a specified property.

    Parameters
    ----------
    property: any
        Alias property (an object path string or reference).

    Examples
    --------
    > help( isString.isPrimitive )
    > help( 'isString.isPrimitive' )


help( instance )
    Prints help text for a provided class instance.

    Only direct instances of documented built-in constructors are supported.

    Parameters
    ----------
    instance: any
        Class instance.

    Examples
    --------
    > help( new Float64Array( 10 ) )

    See Also
    --------
    example, info