<commit_before>
## Datatypes

OPAL provides each implementation a few commonly used data archetypes for re-use and compatibility.

### User / Role models

* Role
* Team
* UserProfile

### Patient care models

* Patient
* Episode

### Metadata models

* ContactNumber
* GP
* CommunityNurse

## Lookuplists

* Gender
* Ethnicity
<commit_msg>Start reference guide for built in angular filters<commit_after>
## Datatypes

OPAL provides each implementation a few commonly used data archetypes for re-use and compatibility.

### User / Role models

* Role
* Team
* UserProfile

### Patient care models

* Patient
* Episode

### Metadata models

* ContactNumber
* GP
* CommunityNurse

## Lookuplists

* Gender
* Ethnicity

## Built in Angular Filters

### shortDate

Displays a date as DD/MM if it's this year, else DD/MM/YYYY

### hhmm 

Displays the hours & minutes portion of a javascript Date object as HH:MM
{'fraction_non_alphanumeric': 0.08066298342541436, 'fraction_numerical': 0.0, 'mean_word_length': 4.177142857142857, 'pattern_counts': {'":': 0, '<': 3, '<?xml version=': 0, '>': 3, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 2, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '2809683', 'n_tokens_mistral': 289, 'n_tokens_neox': 269, 'n_words': 106}