events: Add constructors for ParentEventContent and ChildEventContent

crates/ruma-events/src/space/child.rs

@@ -14,7 +14,7 @@ use crate::StateEvent;
 pub type ChildEvent = StateEvent<ChildEventContent>;
 
 /// The payload for `ChildEvent`.
-#[derive(Clone, Debug, Deserialize, Serialize, EventContent)]
+#[derive(Clone, Debug, Default, Deserialize, Serialize, EventContent)]
 #[cfg_attr(not(feature = "unstable-exhaustive-types"), non_exhaustive)]
 #[ruma_event(type = "m.space.child", kind = State)]
 pub struct ChildEventContent {
@@ -44,6 +44,13 @@ pub struct ChildEventContent {
     pub suggested: Option<bool>,
 }
 
+impl ChildEventContent {
+    /// Creates a new `ChildEventContent`.
+    pub fn new() -> Self {
+        Self::default()
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::ChildEventContent;

crates/ruma-events/src/space/parent.rs

@@ -32,6 +32,13 @@ pub struct ParentEventContent {
     pub canonical: bool,
 }
 
+impl ParentEventContent {
+    /// Creates a new `ParentEventContent` with the given canonical flag.
+    pub fn new(canonical: bool) -> Self {
+        Self { via: None, canonical }
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::ParentEventContent;