Method could be a function

### [Codacy](https://app.codacy.com/gh/BuildForSDG/team-272-SMES-Server/commit?cid=469587798) detected an issue:
#### Message: `Method could be a function`

#### Occurred on:
+ **Commit**: b3ff0019795419a392647e530bc5f7651d3a0fd8
+ **File**: [sme/serializers.py](https://github.com/BuildForSDG/team-272-SMES-Server/blob/b3ff0019795419a392647e530bc5f7651d3a0fd8/sme/serializers.py)
+ **LineNum**: [13](https://github.com/BuildForSDG/team-272-SMES-Server/blob/b3ff0019795419a392647e530bc5f7651d3a0fd8/sme/serializers.py#L13)
+ **Code**: `def create(self, validated_data):`

#### Currently on:
+ **Commit**: 8f6fa99e6d0a77f76cbc85b03106c0442fe4d105
+ **File**: [sme/serializers.py](https://github.com/BuildForSDG/team-272-SMES-Server/blob/8f6fa99e6d0a77f76cbc85b03106c0442fe4d105/sme/serializers.py)
+ **LineNum**: [12](https://github.com/BuildForSDG/team-272-SMES-Server/blob/8f6fa99e6d0a77f76cbc85b03106c0442fe4d105/sme/serializers.py#L12)

Start in sme/serializers.py at the create(self, validated_data) method on the current commit and review the Codacy warning. Run the repository's available tests after the change; done means the warning is resolved without changing serializer behavior.

Written by the indexing model from the issue text.