Retrieves the top-level maintenance types configured in the system, such as "Corrective" or "Preventive". 
These serve as the parent classification for maintenance sub types. All keys in `paramsDict` are optional and act as filters � omit a key (or pass an empty dict) to return every maintenance type. 
Use `enabled` to restrict results to active types, or `maintenanceTypeId`/`maintenanceTypeName` to look up a specific one.

---
### Parameters
**paramsDict** `Dictionary`<br />
<table class='dictionaryKeyTable'>
	<tbody>
 	<tr><td> - enabled</td><td>Boolean</td><td></td></tr>	
 	<tr><td> - maintenanceTypeId</td><td>Integer</td><td></td></tr>	
 	<tr><td> - maintenanceTypeName</td><td>String</td><td></td></tr>	
	</tbody>
</table>

---
### Returns
**workOrderStatusData** `pyDataset`<br />

---
### Example
```python
# Look up "Corrective" maintenance type
paramsDict = {"maintenanceTypeName": "Corrective"}
mainTypeInfo = system.kanoa.utilities.convertDatasetRowToJSON(system.kanoa.cmms.getMaintenanceTypes(paramsDict),0)
for k,v in mainTypeInfo.items():
	print k,v
```