core/src/main/java/org/trimou/engine/MustacheEngineBuilder.java
public MustacheEngineBuilder setProperty(String key, Object value) {
        checkArgumentsNotNull(key, value);
        checkNotBuilt();
        this.properties.put(key, value);
        return this;
    }
public MustacheEngineBuilder setProperty(String key, Object value) {
        checkArgumentsNotNull(key, value);
        checkNotBuilt();
        this.properties.put(key, value);
        return this;
    }
Sets a configuration property.

@param key
@param value
@return self