diff --git a/src/download/helpers.rs b/src/download/helpers.rs
index b70797b..a4e0c79 100644
--- a/src/download/helpers.rs
+++ b/src/download/helpers.rs
@@ -93,57 +93,6 @@ pub struct DQTimeSeriesResponse {
     instruments: Vec<Instrument>,
 }
 
-/// Response from the DataQuery API for a catalogue request.
-#[allow(dead_code)]
-#[derive(Deserialize, Debug)]
-pub struct DQCatalogueResponse {
-    pub items: u32,
-    pub catalogue_responses: Vec<DQCatalogueSingleResponse>,
-    pub all_instruments: Vec<String>,
-}
-
-/// Methods for DQCatalogueResponse
-impl DQCatalogueResponse {
-    /// Create a new DQCatalogueResponse from a list of DQCatalogueSingleResponse objects.
-    pub fn new(catalogue_responses: Vec<DQCatalogueSingleResponse>) -> Self {
-        let all_instruments: Vec<String> = catalogue_responses
-            .iter()
-            .flat_map(|response| {
-                response
-                    .instruments
-                    .iter()
-                    .map(|instrument| instrument.instrument_name.clone())
-            })
-            .collect();
-
-        DQCatalogueResponse {
-            items: all_instruments.len() as u32,
-            catalogue_responses: catalogue_responses,
-            all_instruments: all_instruments,
-        }
-    }
-}
-
-/// Response from the DataQuery API for a single catalogue request (one page).
-#[allow(dead_code)]
-#[derive(Deserialize, Debug)]
-pub struct DQCatalogueSingleResponse {
-    pub links: Vec<HashMap<String, Option<String>>>,
-    pub items: u32,
-    pub instruments: Vec<DQCatalogueInstrument>,
-}
-
-/// Representation of DQCatalogueSingleResponse.Instrument
-#[allow(dead_code)]
-#[derive(Deserialize, Debug)]
-pub struct DQCatalogueInstrument {
-    #[serde(rename = "instrument-id")]
-    pub instrument_id: String,
-    #[serde(rename = "instrument-name")]
-    pub instrument_name: String,
-    pub item: u32,
-}
-
 /// Representation of DQResponse.Instrument
 #[derive(Deserialize, Debug)]
 struct Instrument {
@@ -196,6 +145,56 @@ pub struct DQTimeSeries {
     expression: String,
     time_series: Vec<(String, Option<f64>)>,
 }
+/// Response from the DataQuery API for a catalogue request.
+#[allow(dead_code)]
+#[derive(Deserialize, Debug)]
+pub struct DQCatalogueResponse {
+    pub items: u32,
+    pub catalogue_responses: Vec<DQCatalogueSingleResponse>,
+    pub all_instruments: Vec<String>,
+}
+
+/// Methods for DQCatalogueResponse
+impl DQCatalogueResponse {
+    /// Create a new DQCatalogueResponse from a list of DQCatalogueSingleResponse objects.
+    pub fn new(catalogue_responses: Vec<DQCatalogueSingleResponse>) -> Self {
+        let all_instruments: Vec<String> = catalogue_responses
+            .iter()
+            .flat_map(|response| {
+                response
+                    .instruments
+                    .iter()
+                    .map(|instrument| instrument.instrument_name.clone())
+            })
+            .collect();
+
+        DQCatalogueResponse {
+            items: all_instruments.len() as u32,
+            catalogue_responses: catalogue_responses,
+            all_instruments: all_instruments,
+        }
+    }
+}
+
+/// Response from the DataQuery API for a single catalogue request (one page).
+#[allow(dead_code)]
+#[derive(Deserialize, Debug)]
+pub struct DQCatalogueSingleResponse {
+    pub links: Vec<HashMap<String, Option<String>>>,
+    pub items: u32,
+    pub instruments: Vec<DQCatalogueInstrument>,
+}
+
+/// Representation of DQCatalogueSingleResponse.Instrument
+#[allow(dead_code)]
+#[derive(Deserialize, Debug)]
+pub struct DQCatalogueInstrument {
+    #[serde(rename = "instrument-id")]
+    pub instrument_id: String,
+    #[serde(rename = "instrument-name")]
+    pub instrument_name: String,
+    pub item: u32,
+}
 
 /// Representation of a JPMaQS indicator (1 or more time series for a single JPMaQS ticker)
 #[derive(Debug)]