input UserChanges {
  name: String
}

input CreateProjectChanges {
  title: String!
}

input ProjectTaskChanges {
  label: String
  categoryId: ID
  estimations: ProjectTaskEstimationsChanges
}

input ProjectTaskEstimationsChanges {
  optimistic: Float
  likely: Float
  pessimistic: Float
}

type Mutation {
  updateUser(id: ID!, changes: UserChanges!): User!
  createProject(changes: CreateProjectChanges!): Project!
  updateProjectTitle(projectId: ID!, title: String!): Project!
  addProjectTask(projectId: ID!, changes: ProjectTaskChanges): Task!
  removeProjectTask(projectId: ID!, taskId: ID!): Boolean!
}