DOCS-11386, DOCS-11446, DOCS-11380, DOCS-11383: $convert and shorthand

Author: kay-kim

source/includes/ref-toc-aggregation-operators.yaml

@@ -86,6 +86,11 @@ description: |
   Accepts either three expressions in an ordered list or three named
   parameters.
 ---
+name: :expression:`$convert`
+file: /reference/operator/aggregation/convert
+description: |
+  Converts a value to a specified type.
+---
 name: :expression:`$dateFromParts`
 file: /reference/operator/aggregation/dateFromParts
 description: |
@@ -544,6 +549,47 @@ description: |
    Evaluates a series of case expressions. When it finds an expression
    which evaluates to ``true``, ``$switch`` executes a specified
    expression and breaks out of the control flow.
+
+---
+name: :expression:`$toBool`
+file: /reference/operator/aggregation/toBool
+description: |
+  Converts value to a boolean.
+---
+name: :expression:`$toDate`
+file: /reference/operator/aggregation/toDate
+description: |
+  Converts value to a Date.
+---
+name: :expression:`$toDecimal`
+file: /reference/operator/aggregation/toDecimal
+description: |
+  Converts value to a Decimal128.
+---
+name: :expression:`$toDouble`
+file: /reference/operator/aggregation/toDouble
+description: |
+  Converts value to a double.
+---
+name: :expression:`$toInt`
+file: /reference/operator/aggregation/toInt
+description: |
+  Converts value to an integer.
+---
+name: :expression:`$toLong`
+file: /reference/operator/aggregation/toLong
+description: |
+  Converts value to a long.
+---
+name: :expression:`$toObjectId`
+file: /reference/operator/aggregation/toObjectId
+description: |
+  Converts value to an ObjectId.
+---
+name: :expression:`$toString`
+file: /reference/operator/aggregation/toString
+description: |
+  Converts value to a string.
 ---
 name: :expression:`$toLower`
 file: /reference/operator/aggregation/toLower