# MapToCollection class
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection"></a>

Applies a transform to each `DynamicFrame` in the specified `DynamicFrameCollection`.

## Methods
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-_methods"></a>
+ [\$1\$1call\$1\$1](#aws-glue-api-crawler-pyspark-transforms-MapToCollection-__call__)
+ [Apply](#aws-glue-api-crawler-pyspark-transforms-MapToCollection-apply)
+ [Name](#aws-glue-api-crawler-pyspark-transforms-MapToCollection-name)
+ [describeArgs](#aws-glue-api-crawler-pyspark-transforms-MapToCollection-describeArgs)
+ [describeReturn](#aws-glue-api-crawler-pyspark-transforms-MapToCollection-describeReturn)
+ [describeTransform](#aws-glue-api-crawler-pyspark-transforms-MapToCollection-describeTransform)
+ [describeErrors](#aws-glue-api-crawler-pyspark-transforms-MapToCollection-describeErrors)
+ [Describe](#aws-glue-api-crawler-pyspark-transforms-MapToCollection-describe)

## \$1\$1call\$1\$1(dfc, BaseTransform, frame\$1name, transformation\$1ctx = "", \$1\$1base\$1kwargs)
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-__call__"></a>

Applies a transform function to each `DynamicFrame` in the specified `DynamicFrameCollection`.
+ `dfc` – The `DynamicFrameCollection` over which to apply the transform function (required).
+ `callable` – A callable transform function to apply to each member of the collection (required).
+ `transformation_ctx` – A unique string that is used to identify state information (optional).

Returns a new `DynamicFrameCollection` created by applying the transform to each `DynamicFrame` in the source `DynamicFrameCollection`.

## apply(cls, \$1args, \$1\$1kwargs)
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-apply"></a>

Inherited from `GlueTransform` [apply](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-apply)

## name(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-name"></a>

Inherited from `GlueTransform` [name](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-name).

## describeArgs(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-describeArgs"></a>

Inherited from `GlueTransform` [describeArgs](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeArgs).

## describeReturn(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-describeReturn"></a>

Inherited from `GlueTransform` [describeReturn](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeReturn).

## describeTransform(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-describeTransform"></a>

Inherited from `GlueTransform` [describeTransform](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeTransform).

## describeErrors(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-describeErrors"></a>

Inherited from `GlueTransform` [describeErrors](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describeErrors).

## describe(cls)
<a name="aws-glue-api-crawler-pyspark-transforms-MapToCollection-describe"></a>

Inherited from `GlueTransform` [describe](aws-glue-api-crawler-pyspark-transforms-GlueTransform.md#aws-glue-api-crawler-pyspark-transforms-GlueTransform-describe).