> ## Documentation Index
> Fetch the complete documentation index at: https://easyaf.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# IModelMapper

> Represents a service that maps between             the model space and the object space.

## Definition

**Assembly:** Microsoft.Restier.Core.dll

**Namespace:** Microsoft.Restier.Core.Model

## Syntax

```csharp theme={"dark"}
Microsoft.Restier.Core.Model.IModelMapper
```

## Summary

Represents a service that maps between
the model space and the object space.

## Methods

### <Icon icon="function" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> TryGetRelevantType <Badge color="orange">Abstract</Badge>

Tries to get the relevant type of an entity
set, singleton, or composable function import.

#### Syntax

```csharp theme={"dark"}
bool TryGetRelevantType(Microsoft.Restier.Core.Model.ModelContext context, string name, out System.Type relevantType)
```

#### Parameters

| Name                                   | Type                                        | Description                                                         |
| -------------------------------------- | ------------------------------------------- | ------------------------------------------------------------------- |
| `context`                              | `Microsoft.Restier.Core.Model.ModelContext` | The context for model mapper.                                       |
| `name`                                 | `string`                                    | The name of an entity set, singleton or composable function import. |
| `relevantType`                         | `System.Type`                               | When this method returns, provides the                              |
| relevant type of the queryable source. |                                             |                                                                     |

#### Returns

Type: `bool`
`true` if the relevant type was
provided; otherwise, `false`.

#### Remarks

For entity sets, the relevant type is its element entity type.

For singletons, the relevant type is the singleton entity type.

For composable function imports, the relevant type is the return
type if it is a primitive, complex or entity type, or the element
type of the return type if it is a collection type.

This method can return true and assign `null` as the relevant
type when it is overriding a previously registered service and
specifically opting to not support the specified queryable source.

### <Icon icon="function" iconType="duotone" color="#419AC5" size={24} className="mr-2" /> TryGetRelevantType <Badge color="orange">Abstract</Badge>

Tries to get the relevant type of a composable function.

#### Syntax

```csharp theme={"dark"}
bool TryGetRelevantType(Microsoft.Restier.Core.Model.ModelContext context, string namespaceName, string name, out System.Type relevantType)
```

#### Parameters

| Name                                      | Type                                        | Description                                               |
| ----------------------------------------- | ------------------------------------------- | --------------------------------------------------------- |
| `context`                                 | `Microsoft.Restier.Core.Model.ModelContext` | The context for model mapper.                             |
| `namespaceName`                           | `string`                                    | The name of a namespace containing a composable function. |
| `name`                                    | `string`                                    | The name of composable function.                          |
| `relevantType`                            | `System.Type`                               | When this method returns, provides the                    |
| relevant type of the composable function. |                                             |                                                           |

#### Returns

Type: `bool`
`true` if the relevant type was
provided; otherwise, `false`.

#### Remarks

For composable functions, the relevant type is the return
type if it is a primitive, complex or entity type, or the
element type of the return type if it is a collection type.

This method can return true and assign `null` as the relevant
type when it is overriding a previously registered service and
specifically opting to not support the specified composable function.