Sets the option for the template class. Currently it understands the following options:
preserve_data
If set to TRUE, then do not substitute variables and remove unused placeholders in data added through setVariable() and setGlobalVariable().
See also bugs #20199 and
#21951. Default is FALSE, for performance reasons.
trim_on_save
Whether to trim extra whitespace from template on cache save. Generally safe to have this on, unless you have <pre></pre> in templates or want to preserve HTML indentantion.
Default is TRUE
Parameter
string
$option
option name
mixed
$value
option value
Return value
return SIGMA_OK on success, error object on failure
