ModelSummary
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Overview
  model type                          : non-ODE
  fixed-effect blocks                 : 4
  fixed-effect scalar values          : 4
  random effects                      : 0
  random-effect grouping columns      : 0
  covariates (declared)               : 1
  formulas (deterministic / outcomes) : 1 / 1
  requires DE accessors               : false

Structure blocks
  helpers              : false
  fixed effects        : true
  random effects       : false
  covariates           : true
  preDE                : false
  DifferentialEquation : false
  initialDE            : false

Covariate classes
  varying  : 1
  constant : 0
  dynamic  : 0

Fixed-effects declarations
  name  type        size  se  prior      scale     bounds                              details
  ---------------------------------------------------------------------------------------------------------
  a     RealNumber     1  yes  Normal     identity  finite lower 0/1, finite upper 0/1  -
  k     RealNumber     1  yes  Normal     identity  finite lower 0/1, finite upper 0/1  -
  t0    RealNumber     1  yes  Normal     identity  finite lower 0/1, finite upper 0/1  -
  σ     RealNumber     1  yes  LogNormal  log       finite lower 1/1, finite upper 0/1  -

Random-effects declarations
  (none)

Covariate declarations
  name  kind       columns                   constant_on           interpolation
  ---------------------------------------------------------------------------------------
  age   Covariate  age                       -                     -

Formulas
  deterministic names : μ
  outcome names       : circumference
  required DE states  : (none)
  required DE signals : (none)
  declared DE states  : (none)
  declared DE signals : (none)
Outcome distribution types
  circumference => Normal

Helper functions
  names : (none)