Don't require importing Param for derive macro

nih_plug_derive/src/lib.rs

@@ -176,6 +176,9 @@ pub fn derive_params(input: TokenStream) -> TokenStream {
             fn param_map(
                 self: std::pin::Pin<&Self>,
             ) -> std::collections::HashMap<&'static str, nih_plug::param::internals::ParamPtr> {
+                // This may not be in scope otherwise
+                use ::nih_plug::Param;
+
                 let mut param_map = std::collections::HashMap::new();
 
                 #(#param_mapping_insert_tokens)*

plugins/examples/gain-gui/src/lib.rs

@@ -6,7 +6,7 @@ use nih_plug::{
     formatters, util, Buffer, BufferConfig, BusConfig, Editor, IntParam, Plugin, ProcessContext,
     ProcessStatus, Vst3Plugin,
 };
-use nih_plug::{FloatParam, Param, Params, Range, Smoother, SmoothingStyle};
+use nih_plug::{FloatParam, Params, Range, Smoother, SmoothingStyle};
 use nih_plug_egui::{create_egui_editor, egui, widgets, EguiState};
 use std::pin::Pin;
 use std::sync::Arc;

plugins/examples/gain/src/lib.rs

@@ -5,7 +5,7 @@ use nih_plug::{
     formatters, util, Buffer, BufferConfig, BusConfig, Plugin, ProcessContext, ProcessStatus,
     Vst3Plugin,
 };
-use nih_plug::{BoolParam, FloatParam, Param, Params, Range, Smoother, SmoothingStyle};
+use nih_plug::{BoolParam, FloatParam, Params, Range, Smoother, SmoothingStyle};
 use parking_lot::RwLock;
 use std::pin::Pin;
 use std::sync::Arc;

plugins/examples/sine/src/lib.rs

@@ -5,7 +5,7 @@ use nih_plug::{
     formatters, util, Buffer, BufferConfig, BusConfig, Plugin, ProcessContext, ProcessStatus,
     Vst3Plugin,
 };
-use nih_plug::{BoolParam, FloatParam, Param, Params, Range, Smoother, SmoothingStyle};
+use nih_plug::{BoolParam, FloatParam, Params, Range, Smoother, SmoothingStyle};
 use std::f32::consts;
 use std::pin::Pin;