code: def _check_precisions_full(precisions, covariance_type):
      """Check the precision matrices are symmetric and positive-definite."""
      for prec in precisions:
          _check_precision_matrix(prec, covariance_type)
  
imports: import numpy
  from scipy import linalg
  from ..utils import check_array
  from ..utils._param_validation import StrOptions
  from ..utils.extmath import row_norms
  from ._base import BaseMixture, _check_shape
label_desc: Use image node_id 5 for calling a global function with example usage: _check_precisions_full(precisions, covariance_type) without return types