# meta · Rell standard library · Chromia Docs (concept)

> type meta Since 0.13.5 Attributes simple_name: text The simple name of the definition represented by this meta value. For example, an operation my_op defin

Source: https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/rell/meta/

TYPE

# meta

On this page

* [Attributes](#attributes)
* [Methods](#methods)

```signature
type meta
```

Since 0.13.5

## Attributes

`simple_name: text`
:   The simple name of the definition represented by this meta value.

    For example, an operation `my_op` defined in a module `a.b.c`, and nested inside namespaces `n`
    and `m` (where `n` is the outermost), would have the simple name `my_op`.

    Where the kind of definition described by this meta value is a module, `simple_name` is the
    last part of the module's path; e.g. for a module `a.b.c`, the `simple_name` is `c`.

    Since 0.13.5

`full_name: text`
:   The full name of the definition represented by this meta value, including the names of the
    module and namespace in which the definition occurs.

    For example, an operation `my_op` defined in a module `a.b.c`, and nested inside namespaces `n`
    and `m` (where `n` is the outermost), would have the full name `a.b.c:n.m.my_op`.

    Where the kind of definition described by this meta value is a module, `full_name` is equal to
    `module_name`.

    Since 0.13.5

`module_name: text`
:   The name of the module to which the definition represented by this meta value belongs.

    For example, an operation `my_op` defined in a module `a.b.c`, would have the module name
    `a.b.c`.

    Where the kind of definition described by this meta value is a module, `module_name` is equal
    to `full_name`.

    Since 0.13.5

`mount_name: text`
:   The effective mount name of the definition represented by this meta value, determined by:

    * the name of the definition
    * the names of any namespaces in which the definition occurs
    * any `@mount` annotations on the definition
    * any `@mount` annotations on any namespaces in which the definition occurs
    * any `@mount` annotations defined on the module in which the definition occurs, and any of its
      parent modules

    Since 0.13.5

`kind_text: text`
:   Text representing the kind of the definition described by this meta value.

    Possible values are `module`, `entity`, `object`, `operation` and `query`.

    For example, an operation `my_op` defined in a module `a.b.c`, would have the kind text
    `operation`.

    Since 0.13.10

## Methods

[meta](https://docs.chromia.com/pages/rell-stdlib/-rell-system-library/rell/meta/meta/)
:   Construct a value of type rell.meta, which describes a definition.

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