/// <summary>
/// Gets the expression as an <see cref="REnvironment"/>.
/// </summary>
/// <param name="expression">The environment.</param>
/// <returns>The environment.</returns>
public static REnvironment AsEnvironment(this SymbolicExpression expression)
{
if (!expression.IsEnvironment())
{
return(null);
}
return(new REnvironment(expression.Engine, expression.DangerousGetHandle()));
}
