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chore: Update SDK documentation (#2604)
Co-authored-by: marvin-context-protocol[bot] <225465937+marvin-context-protocol[bot]@users.noreply.github.com>
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@ -10,7 +10,58 @@ Base classes and interfaces for FastMCP resources.
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## Classes
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### `Resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L33" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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### `ResourceContent` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L39" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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Canonical wrapper for resource content.
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This is the internal representation for all resource reads. Users can
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return ResourceContent directly for full control, or return simpler types
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(str, bytes, dict) which will be automatically converted.
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**Methods:**
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#### `from_value` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L69" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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from_value(cls, value: Any, mime_type: str | None = None, meta: dict[str, Any] | None = None) -> ResourceContent
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```
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Convert any value to ResourceContent, handling serialization.
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**Args:**
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- `value`: The value to convert. Can be\:
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- ResourceContent\: returned as-is (meta param ignored)
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- str\: text content
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- bytes\: binary content
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- other\: serialized to JSON string
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- `mime_type`: Optional MIME type override. If not provided\:
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- str → "text/plain"
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- bytes → "application/octet-stream"
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- other → "application/json"
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- `meta`: Optional metadata (ignored if value is already ResourceContent)
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**Returns:**
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- ResourceContent instance
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#### `to_mcp_resource_contents` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L110" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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to_mcp_resource_contents(self, uri: AnyUrl | str) -> mcp.types.TextResourceContents | mcp.types.BlobResourceContents
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```
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Convert to MCP resource contents type.
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**Args:**
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- `uri`: The URI of the resource (required by MCP types)
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**Returns:**
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- TextResourceContents for str content, BlobResourceContents for bytes
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### `Resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L137" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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Base class for all resources.
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@ -18,25 +69,13 @@ Base class for all resources.
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**Methods:**
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#### `enable` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L51" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L158" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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enable(self) -> None
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from_function(fn: Callable[..., Any], uri: str | AnyUrl, name: str | None = None, title: str | None = None, description: str | None = None, icons: list[Icon] | None = None, mime_type: str | None = None, tags: set[str] | None = None, annotations: Annotations | None = None, meta: dict[str, Any] | None = None, task: bool | TaskConfig | None = None) -> FunctionResource
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```
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#### `disable` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L59" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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disable(self) -> None
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```
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#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L68" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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from_function(fn: Callable[..., Any], uri: str | AnyUrl, name: str | None = None, title: str | None = None, description: str | None = None, icons: list[Icon] | None = None, mime_type: str | None = None, tags: set[str] | None = None, enabled: bool | None = None, annotations: Annotations | None = None, meta: dict[str, Any] | None = None, task: bool | TaskConfig | None = None) -> FunctionResource
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```
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#### `set_default_mime_type` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L99" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `set_default_mime_type` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L187" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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set_default_mime_type(cls, mime_type: str | None) -> str
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@ -45,7 +84,7 @@ set_default_mime_type(cls, mime_type: str | None) -> str
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Set default MIME type if not provided.
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#### `set_default_name` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L106" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `set_default_name` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L194" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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set_default_name(self) -> Self
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@ -54,40 +93,78 @@ set_default_name(self) -> Self
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Set default name from URI if not provided.
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#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L116" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L204" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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read(self) -> str | bytes
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read(self) -> str | bytes | ResourceContent
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```
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Read the resource content.
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This method is not implemented in the base Resource class and must be
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implemented by subclasses.
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This method must be implemented by subclasses. For backwards compatibility,
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subclasses can return str, bytes, or ResourceContent. However, returning
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str or bytes is deprecated - new code should return ResourceContent.
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**Returns:**
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- str | bytes | ResourceContent: The resource content. Returning str
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- or bytes is deprecated; prefer ResourceContent for full control
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- over MIME type and metadata.
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#### `to_mcp_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L124" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `convert_result` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L218" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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to_mcp_resource(self, **overrides: Any) -> MCPResource
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convert_result(self, raw_value: Any) -> ResourceContent
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```
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Convert the resource to an MCPResource.
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Convert a raw return value to ResourceContent.
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Handles ResourceContent passthrough and converts raw values using mime_type.
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#### `key` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L149" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `to_mcp_resource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L261" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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to_mcp_resource(self, **overrides: Any) -> SDKResource
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```
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Convert the resource to an SDKResource.
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#### `key` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L286" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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key(self) -> str
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```
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The key of the component. This is used for internal bookkeeping
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and may reflect e.g. prefixes or other identifiers. You should not depend on
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keys having a certain value, as the same tool loaded from different
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hierarchies of servers may have different keys.
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The globally unique lookup key for this resource.
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### `FunctionResource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L159" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `register_with_docket` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L290" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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register_with_docket(self, docket: Docket) -> None
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```
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Register this resource with docket for background execution.
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#### `add_to_docket` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L296" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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add_to_docket(self, docket: Docket, **kwargs: Any) -> Execution
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```
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Schedule this resource for background execution via docket.
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**Args:**
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- `docket`: The Docket instance
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- `fn_key`: Function lookup key in Docket registry (defaults to self.key)
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- `task_key`: Redis storage key for the result
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- `**kwargs`: Additional kwargs passed to docket.add()
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### `FunctionResource` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L318" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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A resource that defers data loading by wrapping a function.
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@ -104,20 +181,37 @@ The function can return:
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**Methods:**
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#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L179" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `from_function` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L334" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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from_function(cls, fn: Callable[..., Any], uri: str | AnyUrl, name: str | None = None, title: str | None = None, description: str | None = None, icons: list[Icon] | None = None, mime_type: str | None = None, tags: set[str] | None = None, enabled: bool | None = None, annotations: Annotations | None = None, meta: dict[str, Any] | None = None, task: bool | TaskConfig | None = None) -> FunctionResource
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from_function(cls, fn: Callable[..., Any], uri: str | AnyUrl, name: str | None = None, title: str | None = None, description: str | None = None, icons: list[Icon] | None = None, mime_type: str | None = None, tags: set[str] | None = None, annotations: Annotations | None = None, meta: dict[str, Any] | None = None, task: bool | TaskConfig | None = None) -> FunctionResource
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```
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Create a FunctionResource from a function.
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#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L227" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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#### `read` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L380" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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read(self) -> str | bytes
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read(self) -> str | bytes | ResourceContent
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```
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Read the resource by calling the wrapped function.
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**Returns:**
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- str | bytes | ResourceContent: The resource content. If the user's
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- function returns str, bytes, dict, etc., it will be wrapped
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- in ResourceContent. Nested Resource reads may return raw types.
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#### `register_with_docket` <sup><a href="https://github.com/jlowin/fastmcp/blob/main/src/fastmcp/resources/resource.py#L400" target="_blank"><Icon icon="github" style="width: 14px; height: 14px;" /></a></sup>
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```python
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register_with_docket(self, docket: Docket) -> None
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```
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Register this resource with docket for background execution.
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FunctionResource registers the underlying function, which has the user's
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Depends parameters for docket to resolve.
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