public CreateFunctionRequest withFileSystemConfigs(FileSystemConfig... fileSystemConfigs) {
        if (this.fileSystemConfigs == null) {
            setFileSystemConfigs(new com.amazonaws.internal.SdkInternalList<FileSystemConfig>(fileSystemConfigs.length));
        }
        for (FileSystemConfig ele : fileSystemConfigs) {
            this.fileSystemConfigs.add(ele);
        }
        return this;
    }
<p>
Connection settings for an Amazon EFS file system.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setFileSystemConfigs(java.util.Collection)} or {@link #withFileSystemConfigs(java.util.Collection)} if
you want to override the existing values.
</p>

@param fileSystemConfigs
       Connection settings for an Amazon EFS file system.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-lambda/src/main/java/com/amazonaws/services/lambda/model/CreateFunctionRequest.java